atomisp: enable upscaling on ISP

atomisp: enable upscaling on ISP

BZ: 41720

If the requested resolution is bigger than what the sensor supports,
use ISP upscaler to construct image of desired size instead of
returning a smaller resolution to user space.

Change-Id: Ie7b9e55fbe28b38b976851008f03537456501d26
Signed-off-by: Tuukka Toivonen <tuukka.toivonen@intel.com>
Reviewed-on: http://android.intel.com:8080/52729
Reviewed-by: Laakso, Antti <antti.laakso@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>