Android 9.0.0 release 21
Snap for 4966094 from e8ff4eb8cce6b32b8e246dd658284bde20000f5b to pi-qpr1-release

Change-Id: Ie8b52c41533bde1ae9a43051a36dfeb8909cfcf3
tree: 547529416ecbc3c2a89ba3197d28f090fb46f1af
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk