Update AudioTrack comments
Update AudioTrack comments

Change-Id: I0cdca92e3ac63088ed919c4dcfb309d3ccb59092

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base