media: imx: imx7-mipi-csis: Add missing RAW formats

Add support for all the missing 8-, 10-, 12- and 14-bit RAW formats.
This include all Bayer combinations, as well as greyscale. No media bus
code exist for Y14 so this is currently left out.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>