Input: clps711x-keypad - 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 <[e-mail]>
Signed-off-by: Dmitry Torokhov <[e-mail]>

drivers/input/keyboard/clps711x-keypad.c

···
 	return 0;
 }
 
-static struct of_device_id clps711x_keypad_of_match[] = {
+static const struct of_device_id clps711x_keypad_of_match[] = {
 	{ .compatible = "cirrus,clps711x-keypad", },
 	{ }
 };