libhardware: sync with CAF

Change-Id: I8ae41fb7963a62d0033490d8987c388c4ceebcd0
Merge remote-tracking branch 'upstream/android-5.0' into android-5.0
Omni sync
audio: add missing whitespace

Change-Id: Ic1dd7fe891d1dceec3f916820b163db7848eb72f
Merge remote-tracking branch 'upstream/android-5.0' into android-5.0
Omni sync