audio policy: optimize preferred device selection am: 72af8011 am:...

audio policy: optimize preferred device selection am: 72af8011 am: 8a537f2c am: 785da99f am: 238d4ada

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/22242942



Change-Id: I320b67a6a1ce66b77ac78d1d4e93fab878b7d96b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>