Merge "audio policy manager: fix BT SCO stream mute" into rvc-qpr-dev am: 75f20e19 am: 1d9fbfd8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/12820562

Change-Id: I3e929a023c95064798b464f06fbc26707c06c66c