Revert "Remove default device selection logic that gives top priority to connected hearing aids." am: ead7feefad

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/20961464

Change-Id: I66ea1fb45e21968b705ba80c04c3194506db0781
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>