[media] mx2_camera: Fix sizeimage computation in try_fmt()

The try_fmt() handler restricts the image width based on the hardware
limits and updates the bytesperline value, but doesn't update sizeimage.
Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index 7c3c0e8..36d17f3 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -1416,6 +1416,7 @@
 			pix->bytesperline = soc_mbus_bytes_per_line(pix->width,
 							xlate->host_fmt);
 			BUG_ON(pix->bytesperline < 0);
+			pix->sizeimage = pix->height * pix->bytesperline;
 		}
 	}