Merge pi-dev-plus-aosp-without-vendor into stage-dr1-aosp-master
am: 6b24c73c7e

Change-Id: I46b6de0cca87c0b6dae6849b820b905d34fb9a93
tree: 027f1322a61ef15c2877a39dabf9fbf0a5681791
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk