RootCanal: Support LE 4.1 advertising
Bug:
139080884
Test: Start and stop advertising with root_canal desktop
Window #1:
$ ./root_canal
Window #2:
$ python test_channel.py 6401
$ add_device_to_phy 1 2
$ add sniffer 00:00:00:00:00:00
$ add_device_to_phy 2 2
Window #3:
# Connect a new HCI device
$ python3 simple_stack.py 6402
# Set the Random address to 1 2 3 4 5 6
$ send 01 05 20 06 01 02 03 04 05 06
# Enable BLE advertising
$ send 01 0A 20 01 01
# Disable BLE advertising
$ send 01 0A 20 01 00
# Configure advertising (interval 0x06-0x50, random address, peer 01:02:03:04:05:06)
$ send 01 06 20 0F 06 00 50 00 00 01 00 01 02 03 04 05 06 07 00
Change-Id: I5922d88792803847822e5d56aa57a49140c8363f