Bluetooth: HFP HF: SCO: Add esco supported pkt type

From the response of read_local_supported_feaatures check if local
device supports eSCO packet type and update it to bt_dev.
Also added sco field in bt_dev

Change-Id: If85b3d24d327a6243318fad89a07375a8253f89b
Signed-off-by: Sathish Narasimman <sathish.narasimman@intel.com>