drivers:i2c update cm3629 driver

Signed-off-by: Bryan Smith <zarboz@gmail.com>
finish removal of old s2w code

Signed-off-by: Bryan Smith <zarboz@gmail.com>
change i2c listen rates to reflect Showps hammerhead patch in hopes for wake from deep sleep

Signed-off-by: Bryan Smith <zarboz@gmail.com>