Input: i8042 - constify pnp_device_id

pnp_device_id are not supposed to change at runtime. All functions
working with pnp_device_id provided by <linux/pnp.h> work with
const pnp_device_id. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/serio/i8042-x86ia64io.h

@@ -927,7 +927,7 @@ static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *
 	return 0;
 }
 
-static struct pnp_device_id pnp_kbd_devids[] = {
+static const struct pnp_device_id pnp_kbd_devids[] = {
 	{ .id = "PNP0300", .driver_data = 0 },
 	{ .id = "PNP0301", .driver_data = 0 },
 	{ .id = "PNP0302", .driver_data = 0 },
@@ -957,7 +957,7 @@ static struct pnp_driver i8042_pnp_kbd_driver = {
 	},
 };
 
-static struct pnp_device_id pnp_aux_devids[] = {
+static const struct pnp_device_id pnp_aux_devids[] = {
 	{ .id = "AUI0200", .driver_data = 0 },
 	{ .id = "FJC6000", .driver_data = 0 },
 	{ .id = "FJC6001", .driver_data = 0 },