hal: use consistent in call indication

Use voice_is_in_call() instead of mode == MODE_IN_CALL
as a valid indication that we are in call to choose sound
devices.

Bug: 18058600
Change-Id: Iefa968ee463d4ade6c7d09626be667faab6eda98
3 files changed
tree: 1d939cf2b5e16a6759c99927074da05916d38ce5
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk