Merge "aaudio: fix race when disconnecting" into rvc-dev am: 5a126eaf40 am: 8ab3420d89 am: 6f8102b0c8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/11761087

Change-Id: Id51546790f8a20f3f188b54f59fe852dcc4df73a