sound control 3.x: Initial GPL release for WCD9310 Audio Codec

This is first official GPL release based on my private implementation.

This release has been tested for Mako and Flo officially.  It may work
with other devices using the same WCD9310 Audio Codec as well, but not tested

Change-Id: Ica19ca1d0648834b133ba21f511fdb5a042f8f8f
Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>
Sound Control: (Optional) work around for WCD93xx audio issues

(Use this only for devices with audio reset issues)

Also bump version to 3.1

Signed-off-by: Paul Reioux <reioux@gmail.com>

wcd9xxx-core: add register write without mutex protection

This is assuming the calling function will take care of the mutex.

Change-Id: I39d03c51957bd65ba39dd9fe15c7e0959a3dcf3f
Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>