Sound Control: expose direct register manipulations to userspace

bump driver version to 3.3

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

Sound Control: expose direct register manipulations to userspace

Change-Id: I91c594ea8bd8ec7fe61c997a4980dbbb0f92bcce
Sound Control: Misc clean up for newer WCD9xxx SOCs

Bump driver version to 3.4

Change-Id: I388fe8b5e2355f63899131f178bf72b992d56c4b
Signed-off-by: Paul Reioux <reioux@gmail.com>
Sound Control: add line gain to cached and register lock

Change-Id: I4eb73899396544c0248fa144fb448fc5a51017a2