cm: Turn it up to Eleven

Change-Id: I61250192604498d9259470cbf1a3bb72acfe9eb6
cm: Enable AudioFX

 * Drop DSPManager and libcyanogen-dsp. Devices should switch to
   standard Android effects or offload-capable versions.

Change-Id: I4f4eec5747e9073e576fe70e720ac3ffebb3fdd9
Merge remote-tracking branch 'cm/cm-12.0' into cm-12.0