Merge "audioflinger: fix duplicating track start with a2dp output suspended"...

Merge "audioflinger: fix duplicating track start with a2dp output suspended" into udc-dev am: a8cb431d am: dd8dc21d am: 9c9f6833

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/23370200



Change-Id: Id121a7fa2c74182de68097ed7bea6aecc7d16891
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>