Merge pi-dr1-dev to aosp-master am: 6ef53b355d am: dd92b8ee3d
am: 13c7063062

Change-Id: I02bba9b25fb8be2238aeac5b03f462f5f3f80e90
tree: b3aaacfaf5ed13c796881f1ed433434607c9d68a
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk