AvrcpController Test update

Resolve test failures by use of mocked resource overlays.
Two tests were failing:
- testPlaybackWhileMusicPlaying
- testPlaybackWhileIdle

Bug: 147432575
Test: atest AvrcpControllerStateMachineTest
Change-Id: Id71a7e50bb00d0cc9b15f84a9bfd913a8320fc7e
(cherry picked from commit b5b6e636)

Merged-In: Id71a7e50bb00d0cc9b15f84a9bfd913a8320fc7e
Change-Id: Ife2945b8cf314d35425ffb51c37f94fdc3a18257