Merge "[Output Swticher] [Metrics] logging mute/unmute event" into udc-qpr-dev am: df13d6f7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24439948



Change-Id: I17ffbd1923e8b906d0f25f8c91a290147c0c62bb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>