Send addressed and available player change for PTS test

Implement HandleAddressPlayerUpdate() and HandAvailablePlayerUpdate()
for PTS test.

Bug: 79375787 79376305
Test: PTS Test AVRCPTG/MPS/BV-05-C AVRCP/TG/MPS/BV-07-C
Change-Id: I6b976af8bdd1afcc9799c50c8e558939cf7be187