audio: Unhide MP2/WMA enums

Change-Id: Id7dd73ef35776fda1f753987856759d34fb541f6
system: Update function to calculate bytes per sample for offload

Update function to calculate bytes per sample for offload format

Change-Id: I46b78024293be959ad5d1db1f583933d2ab14576
audio: Unhide PCM offload enums

Change-Id: Iab074ae64d293781769032cc902e72a93374679f
audio: Add support for FLAC in compress offload path

- Add new audio format for FLAC
- Add FLAC in valid formats list
- Add bitWidth in offload info

Change-Id: Ic716aff8b7cdb28b03f32f686eca33ff0beb981c

Conflicts:
	include/system/audio.h
Fix