Bluetooth: split out AVRCP remote interfaces (2/2)

android.media.cts.RemoteControllerTest#testOnClientUpdateListenerUnchanged
will fail because it expects no extra methods to be added to the
listeners and the current AVRCP impl simply appended methods to that
listener. In 13 this was fixed by creating a separate listener for those
callbacks. Backport that listener to fix the test.

Ticket: HAM-1300 CYNGNOS-2716

Change-Id: I063cc5c121beada981d5b97b3052acd6638e3a9a
Signed-off-by: Roman Birg <roman@cyngn.com>
(cherry picked from commit 5aaa6203)