Merge "Add speaker and microphone gain commands to HFP" am: d524bbe18b

Original change: https://android-review.googlesource.com/c/platform/tools/test/connectivity/+/1611790

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I99a25a2f44d179a42365ffdfe8b6dd0fae46569d
tree: 0371e1d02c23276bd2fc8d846499e015249ac563
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg