Merge "hal: add sidetone support for USB" into oc-dr1-dev am: 3a2808261f
am: 33bd01ba51

Change-Id: I7e8e6cc1cb67520b5134fb3c0697f58d9e8eca57
tree: 09b25e47af3c9ccb230a5d229bedac000e1f2e42
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk