media: vs6624: constify vs6624_default_fmt

The structure vs6624_default_fmt is only copied into another
structure field, so it can be const.

Done with the help of Coccinelle.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/i2c/vs6624.c

@@ -58,7 +58,7 @@ static const struct vs6624_format {
 	},
 };
 
-static struct v4l2_mbus_framefmt vs6624_default_fmt = {
+static const struct v4l2_mbus_framefmt vs6624_default_fmt = {
 	.width = VGA_WIDTH,
 	.height = VGA_HEIGHT,
 	.code = MEDIA_BUS_FMT_UYVY8_2X8,