hal: Add pcm format support for a2dp playback am: 3a5da9d4cc
am: 1e43a483b0

Change-Id: Iffa364ea52d27b3670a366144c0cda291400d5c4
tree: ce79d177c5461c8306fabc8b7e0e3fa5e579ec16
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk