Add a pixel format, used by the UVC driver to stream metadata.
Signed-off-by: NGuennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>