Merge "libaudioclient: fix AudioTrack blocking write after underrun" into main am: 0a121506f7 am: 0077bf0b72

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/3364094

Change-Id: I351e3f6a9493afa59e67dd58c4cd4e60b181011f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>