media: rkisp1: Program RKISP1_CIF_MI_SP_Y_PIC_SIZE register

The self path has a Y_PIC_SIZE register that needs to be programmed to
the total number of pixels, including the stride. This isn't done by the
driver, fix it.

While at it, reorder the register write order to sort them by address.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>