avrcp: add new PDU IDs

avrcp_controller: add Category 4 commands

avrcp: fix enum

avrcp_controller: add Category 3 commands

avrcp_controller: fix PASS THROUGH command

avrcp_cotroller: implement move to the first song in the next/previous group

avrcp_controller: fix compile warning

avrcp_controller: reset data offset

avrcp_target: add AVRCP_OPERATION_ID_VENDOR_UNIQUE to the set of valid AVRCP ops

avrcp: clean compile warnings

avrcp: add AVRCP_OPERATION_ID_VENDOR_UNIQUE

avrcp_controller: use offset variable

gatt-service/scps_client: fix service characteristics discovery

l2cap: fix ertm tx buffer reconfiguration

gatt-service/bas-server: generate advertisement data for application

gatt-service/bas-server: emit broadcast started/stopped

gatt-service/bas-server: provide service id on registration

gatt-service/bas-server: assign service id

btstack_defines: add BAS Broadcast control events

gatt-service/bas_server: fix bitmaps

gatt-service/battery_service: add server characteristic configuration

gatt-service/bas_server: validate input params

gatt-service/bas_server: add skeleton setters

gatt-service/bas_server: implement set battery level status

gatt-service/bas_server: cleanup header file