hwmon: (g762) Make of_device_id array const

Make of_device_id array const, because all OF functions
handle it as const.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/g762.c

@@ -586,7 +586,7 @@ static int do_set_fan_startv(struct device *dev, unsigned long val)
  */
 
 #ifdef CONFIG_OF
-static struct of_device_id g762_dt_match[] = {
+static const struct of_device_id g762_dt_match[] = {
 	{ .compatible = "gmt,g762" },
 	{ .compatible = "gmt,g763" },
 	{ },