android/hal-ipc-api: Add mode to Bluetooth HAL
android/hal-ipc-api: Add mode to Bluetooth HAL

This adds additional modes for Bluetooth HAL allowing to enable
only specified technologies:
 0x00 = Enable BR/EDR/LE if supported (default)
 0x01 = Enable BR/EDR only
 0x02 = Enable LE only

pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,silent-snowman/bluez,mapfau/bluez,ComputeCycles/bluez,silent-snowman/bluez,pstglia/external-bluetooth-bluez,pstglia/external-bluetooth-bluez,mapfau/bluez,ComputeCycles/bluez,ComputeCycles/bluez,ComputeCycles/bluez,silent-snowman/bluez,pkarasev3/bluez,mapfau/bluez,pkarasev3/bluez,pkarasev3/bluez,silent-snowman/bluez,mapfau/bluez,pkarasev3/bluez