Revert "Revert "Switch to audio-caf""

This reverts commit 875929adf2d8b789b7f3b73150eef8e8c1874081.

Change-Id: I7651580fa83c2ec84d7e7b87a40bd04171bd0cb6
Merge "Revert "Revert "Switch to audio-caf""" into du44