audio HAL: new track metadata version

Add channel mask and audio attributes tags to playback
and record track metadata sent to audio HAL.
Add new HAL methods and structs for use with HALs version 3.2
and above to provide backwards compatibility with old HALs.

Bug: 168751366
Test: make
Change-Id: I30cc3d35f97bb1bc5f80983f6ae85f3e820bf414
Merged-In: I30cc3d35f97bb1bc5f80983f6ae85f3e820bf414
1 file changed