devfreq: ondemand: cleanup the driver

Just a few cleanups here and there to make it more
simpler to read.

Signed-off-by: Blechd0se <alex.christ@hotmail.de>
Sound Control: expose direct register manipulations to userspace

bump driver version to 3.3

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Blechd0se <alex.christ@hotmail.de>
Sound Control: Misc clean up for newer WCD9xxx SOCs

Bump driver version to 3.4

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Blechd0se <alex.christ@hotmail.de>
Sound Control: let register lock be dependent on different hw revisions

Signed-off-by: Paul Reioux <reioux@gmail.com>
Signed-off-by: Blechd0se <alex.christ@hotmail.de>