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

Signed-off-by: Paul Reioux <reioux@gmail.com>
Changes to make it compile with Google's GCC 4.7 toolchain.

Change-Id: I2d6cdcfbe18449eef8d8b92b9ea14c66963fdf3c

Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: eugenesan (eugenesan) <eugenesan@gmail.com>