Merge "AudioTrackTest: Set WAIT_TIME_MS = 500 ms" into pie-cts-dev am: 8d2f2bdff1 am: 8ea5d6128b

Original change: https://android-review.googlesource.com/c/platform/cts/+/1413308

Change-Id: I77b6d0362554fda153923ecaea05d7e562de3b4c