audio hal: report index channel masks for USB

Report only index channel masks for USB output profiles
supporting more than two channels.

Bug: 120947396
Test: play multichannel audio over USB
Change-Id: I10f6d4751a5a17674d24fb0d074f1dd6a71a06e1
1 file changed
tree: 02bef2541d47d53faf52159d49e1d26f08c2648b
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk
  7. OWNERS