[media] constify of_device_id array

of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)

[mchehab@osg.samsung.com: fix a merge conflict at adv7604.c]
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index c1be0f7..be3f866 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2642,14 +2642,14 @@
 	},
 };
 
-static struct i2c_device_id adv76xx_i2c_id[] = {
+static const struct i2c_device_id adv76xx_i2c_id[] = {
 	{ "adv7604", (kernel_ulong_t)&adv76xx_chip_info[ADV7604] },
 	{ "adv7611", (kernel_ulong_t)&adv76xx_chip_info[ADV7611] },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, adv76xx_i2c_id);
 
-static struct of_device_id adv76xx_of_id[] __maybe_unused = {
+static const struct of_device_id adv76xx_of_id[] __maybe_unused = {
 	{ .compatible = "adi,adv7611", .data = &adv76xx_chip_info[ADV7611] },
 	{ }
 };