media: cobalt: drop static for sd_fmt

The struct v4l2_subdev_format sd_fmt cannot be static since it can be
written back by the subdev. Just have it on the stack.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/cobalt/cobalt-driver.c

@@ -572,7 +572,7 @@ static int cobalt_subdevs_hsma_init(struct cobalt *cobalt)
 		.addr = 0x20,
 		.platform_data = &adv7842_pdata,
 	};
-	static struct v4l2_subdev_format sd_fmt = {
+	struct v4l2_subdev_format sd_fmt = {
 		.pad = ADV7842_PAD_SOURCE,
 		.which = V4L2_SUBDEV_FORMAT_ACTIVE,
 		.format.code = MEDIA_BUS_FMT_YUYV8_1X16,