Enable USB dock audio support

Change-Id: I71b148ae6ab333879cc05ab98d97f4ef546065de
audio_policy: add USB dock audio output device

Change-Id: Iaa8ce50312e4bba41d54a8a7c1684a64958f7c04
Merge "Enable USB dock audio support" into cm-10.1
Merge "audio_policy: add USB dock audio output device" into cm-10.1
Revert "Enable USB dock audio support"

Removed from audio-caf

This reverts commit ae65068700e8c80a26ef7d8e1c2ab841d0c5a7eb.

Change-Id: I2f51efcbdc1de2eb0bea3ca661653d06b757add0
Merge "Revert "Enable USB dock audio support"" into cm-10.1
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1