media: v4l: vsp1: Extend the DU API to support CRC computation

Add a parameter (in the form of a structure to ease future API
extensions) to the VSP atomic flush handler to pass CRC source
configuration, and pass the CRC value to the completion callback.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>