Merge "AudioService: log routing cache clear time, cache sync" into tm-qpr-dev am: 8e013de0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21147318



Change-Id: I711bb34939ff1bba3aa19f6b39100cb8cac0ee45
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>