Move cyanogen-dsp effects lib to external/libcyanogen-dsp

Change-Id: Ic9e242eec73b89d9c7c12d8997c2559357dc4fbd
Remove WM8994/Voodoo sound control

Change-Id: Ia942aa4a1fd3af2f95f21d45c8087f68aa910040
Merge "Remove WM8994/Voodoo sound control" into kk4.4