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
audio: Unhide PCM offload enums

Change-Id: Iab074ae64d293781769032cc902e72a93374679f
system: Update function to calculate bytes per sample for offload

Update function to calculate bytes per sample for offload format

Change-Id: I46b78024293be959ad5d1db1f583933d2ab14576
Apparently I can't add just ANY property. Blah.

Change-Id: Ic874fac8c4adc395b150efe1c542fdca1ef7e67b
Fix
Fix build with gcc-4.8+ and unused-parameter error

Change-Id: Ia5bd8c11967775900c54079dcf5f8ea28e22fddd
Signed-off-by: Paul Beeler <sparksco@gmail.com>
some fixes for gcc 4.8

Change-Id: I27bc3302207978cb7eccd522ed42032a913e3d2a