media: rkisp1: Support setting memory stride for main path

media: rkisp1: Support setting memory stride for main path

Some versions of the ISP supported by the rkisp1 driver, such as the ISP
in the i.MX8MP, implement configurable memory stride for the main path
the same way as already implemented by the driver for the self path.
Support this feature by adding a main stride feature flag and program
the corresponding registers accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>