Add a CamHelper::setHwConfig() helper used by the IPA to set the hardware configuration in use by the pipeline. This will be needed by the IMX500 camera helper in a future commit to determine if the metadata buffer is strided. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>