arduino_101: support booting with original bootloader

To boot zephyr on the Arduino 101 running the original bootloader
which supports DFU, set the following in your application configuration
file:

CONFIG_SS_RESET_VECTOR=0x40034000
CONFIG_PHYS_LOAD_ADDR=0x40010000
CONFIG_VERSION_HEADER=y

Jira: ZEP-219
Change-Id: Ia015a7b6fce888b49ed22c558de992132d4713ea
Signed-off-by: Anas Nashif <anas.nashif@intel.com>