Add support for voice recognition on headset use case

Add sound device for voice recognition headset mic.
Map it by default to same ACDB as headset mic.
Use it when sound source is VOICE_RECOGNITION and the input
  audio device is AUDIO_DEVICE_IN_WIRED_HEADSET.

Bug 22504877

Change-Id: I7ebd9ed0f805c6c6941ba9ddfa3aa7ad0587effb
2 files changed
tree: b189958e91c49e932f81528b4e7b204a5da701ac
  1. Android.mk
  2. hal/
  3. legacy/
  4. post_proc/
  5. visualizer/
  6. voice_processing/