Merge "aaudio: clear data buffer before use" into sc-dev am: c52f8f4eaa am: 36c3e80016

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/14753194

Change-Id: I981df62e991efdb874bab3b1ed5785bdfce9c1d6