Android 8.0.0 release 23
Merge cherrypicks of [2733460, 2733193, 2733197, 2733198, 2733401, 2733480, 2733481, 2733482, 2733402, 2733483, 2733403, 2733484, 2733485] into oc-dr1-release

Change-Id: I553098a272a785c23554e63df02e772d636a99ee
tree: 29169199a83138c35bb9ae3fd4022db6a90f427a
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk