Merge changes from topic "am-60ae75e3615c4f34889686bd8eb4b349" into qt-qpr1-dev-plus-aosp

* changes:
  Fix incorrect sysprop name am: 96ad71a970 am: b3f1f7cdf5
  Revert "Revert "Read both vendor.audio_hal.* and audio_hal.* sysprops"" am: aac4984dc1 am: 4ddcf9d19b
tree: 05ea21c9dd7d37c0e8c2f5bd4eaf97ace784b5c9
  1. hal/
  2. legacy/
  3. post_proc/
  4. visualizer/
  5. voice_processing/
  6. Android.mk
  7. OWNERS