can: constify of_device_id array

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

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/can/cc770/cc770_platform.c

@@ -254,7 +254,7 @@ static int cc770_platform_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id cc770_platform_table[] = {
+static const struct of_device_id cc770_platform_table[] = {
 	{.compatible = "bosch,cc770"}, /* CC770 from Bosch */
 	{.compatible = "intc,82527"},  /* AN82527 from Intel CP */
 	{},