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

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

Change-Id: Idc2a3c89f01dd150895651cb59b9f70e3c42026a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>