Merge "audioflinger: fix duplicating track start with a2dp output suspended" into udc-dev am: a8cb431d am: 44fc9453 am: cce4a105

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



Change-Id: I9a49e493308b730a4c73a454265ea7c98b44d225
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>