media: mt9v111: constify copied structure

The mt9v111_def_fmt structure is only copied into another structure,
so make it const.

The opportunity for this change was found using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/i2c/mt9v111.c

@@ -103,7 +103,7 @@
 #define MT9V111_MAX_CLKIN				27000000
 
 /* The default sensor configuration at startup time. */
-static struct v4l2_mbus_framefmt mt9v111_def_fmt = {
+static const struct v4l2_mbus_framefmt mt9v111_def_fmt = {
 	.width		= 640,
 	.height		= 480,
 	.code		= MEDIA_BUS_FMT_UYVY8_2X8,