ov8830: adjust PLL settings for new full resolution mode

ov8830: adjust PLL settings for new full resolution mode

BZ: 21601

The reference mode design from Omnivision uses 24 MHz
external clock, Clovertrail clock is 19.2 MHz. Adjust
the sensor PLL registers for this difference.

Change-Id: I2f7e81889f579cf6fc5dc0445706bbb7cd0209f7
Signed-off-by: Tuukka Toivonen <tuukka.toivonen@intel.com>
Reviewed-on: http://android.intel.com:8080/33229
Reviewed-by: Jong-a-lock, Robert <robert.jong-a-lock@intel.com>
Reviewed-by: Kruger, Jozef <jozef.kruger@intel.com>
Reviewed-by: Koski, Anttu <anttu.koski@intel.com>
Tested-by: Koski, Anttu <anttu.koski@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>