Merge "AudioService: Add metrics for audio mode" into rvc-dev am: 148c8bc210 am: 8eae5a9c67 am: daaf5ac3b9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12065323

Change-Id: I5526311b29a754b121d849d8a073c87a2ced4014