Merge bluetooth branch into master

Main changes:

 - Cleanups & refactoring to the native controller code
 - Support for cross-transport pairing from BR/EDR to LE
 - Fix potential deadlock in TX fiber when disconnecting
 - Initial skeleton for the Hands-Free Profile (HFP)
 - Fix to Resolvable Private Address (RPA) updates
 - Added flow control support to RFCOMM

----------------------------------------------------------------
Carles Cufi (21):
      Bluetooth: HCI: Fix the length of supported commands
      Bluetooth: Controller: Switch to Zephyr's hci.h for cmd handling
      Bluetooth: HCI: Add handle to LTK command complete events
      Bluetooth: HCI: Add handle to conn param update command complete
      Bluetooth: Controller: Switch to Zephyr's hci.h for cmd handling
      Bluetooth: Controller: Switch to Zephyr's hci.h for cmd handling
      Bluetooth: Controller: Switch to Zephyr's hci.h for cmd handling
      Bluetooth: Controller: Switch to Zephyr's hci.h for cmd handling
      Bluetooth: Controller: Unify handling of async events
      Bluetooth: HCI: Fix and extend advertising report events
      Bluetooth: HCI: Add auth payload expiry event
      Bluetooth: Controller: Use hci.h for control event handling
      Bluetooth: HCI: Add read remote version info event
      Bluetooth: Controller: Use hci.h for data-control evt handling
      Bluetooth: Controller: Use hci.h for num complete
      Bluetooth: Controller: Remove HCI event definitions from hci.c
      Bluetooth: Controller: Use hci.h for ACL data
      Bluetooth: Controller: Clean up HCI macros
      Bluetooth: Controller: Implement LE_RAND command
      Bluetooth: Controller: Make HCI endianness-independent
      Bluetooth: Controller: Refactor HCI files

Grzegorz Kolodziejczyk (3):
      Bluetooth: tester: Add support for L2CAP connect command
      Bluetooth: tester: Add support for L2CAP disconnect commands
      Bluetooth: tester: Add support for L2CAP listen command

Itankar, Piyush T (1):
      Bluetooth: Init: Updated filiter options for test_20

Jaganath Kanakkassery (1):
      Bluetooth: RFCOMM: Implement RX flow control

Johan Hedberg (2):
      Bluetooth: GATT: Fix potential bt_conn reference leak
      Bluetooth: Fix giving back pkts semaphore when disconnecting

Luiz Augusto von Dentz (3):
      Bluetooth: ATT: Fix not handling error response properly
      Bluetooth: HCI: Fix updating RPA too early
      Bluetooth: eddystone: Fix byteorder of advertisement

Mariusz Skamra (1):
      Bluetooth: tester: Add support for L2CAP send data command

Sathish Narasimman (1):
      Bluetooth: HFP HF: Initialize Handsfree profile

Sukumar Ghorai (1):
      Bluetooth: Pre-allocated RFCOMM Channels

Szymon Janc (16):
      Bluetooth: SMP: Move smp_create_pdu function up in a file
      Bluetooth: SMP: Add initial code for BR/EDR support
      Bluetooth: SMP: Clear keys on timeout when running over BR/EDR
      Bluetooth: SMP: Support Pairing Request over BR/EDR
      Bluetooth: SMP: Support Pairing Failed over BR/EDR
      Bluetooth: SMP: Distribute local keys over BR/EDR
      Bluetooth: Add support for reading encryption key size for BR/EDR
      Bluetooth: SMP: Fix encryption key size check in BR/EDR pairing req
      Bluetooth: SMP: Support Pairing Response over BR/EDR
      Bluetooth: SMP: Allow to force BR/EDR without SC support
      Bluetooth: SMP: Add support for LTK derivation from LinkKey
      Bluetooth: SMP: Add support for sending Pairing Request over BR/EDR
      Bluetooth: SMP: Add support for Identity Information over BR/EDR
      Bluetooth: SMP: Add support for Signing Information over BR/EDR
      Bluetooth: SMP: Add helper for reporting BR/EDR pairing complete
      Bluetooth: SMP: Factor out BR/EDR encryption check to helper

Vinayak Chettimada (4):
      Bluetooth: ATT: Remove unnecessary call to BT_ASSERT
      Bluetooth: log: Call _SysFatalErrorHandler in BT_ASSERT()
      Bluetooth: log: Include nanokernel.h to use BT_ASSERT()
      Bluetooth: Controller: Use BT_ASSERT instead of custom impl.

 drivers/bluetooth/controller/Makefile             |    2 +-
 drivers/bluetooth/controller/hal/clock.c          |    8 +-
 drivers/bluetooth/controller/hal/debug.h          |   27 +-
 drivers/bluetooth/controller/hal/ecb.c            |    2 +-
 drivers/bluetooth/controller/hal/radio.c          |    2 +-
 drivers/bluetooth/controller/hal/rand.c           |    2 +-
 drivers/bluetooth/controller/hal/rtc.c            |    2 +-
 drivers/bluetooth/controller/hci/hci.c            | 2380 +++++++-----------
 .../controller/{main.c => hci/hci_driver.c}       |   23 +-
 .../controller/hci/{hci.h => hci_internal.h}      |   14 +-
 drivers/bluetooth/controller/ll/ctrl.c            |  332 +--
 drivers/bluetooth/controller/ll/ticker.c          |    3 +-
 include/bluetooth/hci.h                           |   56 +-
 include/bluetooth/hfp_hf.h                        |   61 +
 include/bluetooth/log.h                           |   17 +-
 include/bluetooth/rfcomm.h                        |    8 +
 net/bluetooth/Kconfig                             |   23 +
 net/bluetooth/Makefile                            |    2 +
 net/bluetooth/att.c                               |    4 +-
 net/bluetooth/conn.c                              |   45 +-
 net/bluetooth/gatt.c                              |    7 +-
 net/bluetooth/hci_core.c                          |   18 +-
 net/bluetooth/hci_core.h                          |    4 +-
 net/bluetooth/hfp_hf.c                            |  123 +
 net/bluetooth/hfp_internal.h                      |   43 +
 net/bluetooth/l2cap_br.c                          |   15 +
 net/bluetooth/l2cap_internal.h                    |    1 +
 net/bluetooth/rfcomm.c                            |   49 +-
 net/bluetooth/smp.c                               |  953 ++++++-
 samples/bluetooth/eddystone/src/main.c            |    4 +-
 tests/bluetooth/init/testcase.ini                 |    7 +-
 tests/bluetooth/tester/src/bttester.h             |   71 +
 tests/bluetooth/tester/src/l2cap.c                |  306 +++
 33 files changed, 2785 insertions(+), 1829 deletions(-)
 rename drivers/bluetooth/controller/{main.c => hci/hci_driver.c} (94%)
 rename drivers/bluetooth/controller/hci/{hci.h => hci_internal.h} (68%)
 create mode 100644 include/bluetooth/hfp_hf.h
 create mode 100644 net/bluetooth/hfp_hf.c
 create mode 100644 net/bluetooth/hfp_internal.h

Change-Id: I7bc41fb1c53c0f5128a1e4ab38815d19018b603f
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>