Merge "[Output Switcher] Handle muting expected device" into tm-dev am:...

Merge "[Output Switcher] Handle muting expected device" into tm-dev am: 1ad92562 am: 497d3dda am: 7f738a75

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18610067



Change-Id: If5b66d605a854c55c697f4c2a126b86ff8d2c543
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>