am a1f48050: hal: Support mute/unmute for HFP Tx

* commit 'a1f480505a2e11b65e8fe6590239bd87b3a33f11':
  hal: Support mute/unmute for HFP Tx
tree: 7b487f555db6ccbe6a169f8b4be6ef93508cd975
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk