[PORT FROM R2] sh_css: fix improper bayerorder cropping

[PORT FROM R2] sh_css: fix improper bayerorder cropping

BZ: 27375

bayer order is matched to the isp's native bayer order by
cropping off a line or column or both dependant on the
bayer pattern chosen. This cropping was not done properly.

Change-Id: I6f267758943eb8948cabc373c1918e015271b5e9
Orig-Change-Id: Ieca6672f8db70084f5c59d596007960b3e33a35c
Reviewed-on: http://android.intel.com:8080/38973
Reviewed-by: Koski, Anttu <anttu.koski@intel.com>
Tested-by: Koski, Anttu <anttu.koski@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>