mondrianwifi: audio: Don't hack up all the path names

This is based on what Steve Kondik did for the hlte which is
clearly a much better way to configure the audio.

Change-Id: I88f14af1993805f586756d3e07bc871e29d96d10
mondrianwifi: audio: Cleanup mixer_paths.xml

Move all our customizations to the end of the file and properly
indent them.  This will make it easier to diff against stock if
there are updates to the file and easier to compare changes
between similar devices.

Change-Id: Ib3dcf2fe5d09a67c78f6460970a0c3f11e9fab3f
Merge remote-tracking branch 'cm/cm-11.0' into HEAD