Input: keyspan_remote - constify usb_device_id

usb_device_id are not supposed to change at runtime. All functions
working with usb_device_id provided by <linux/usb.h> work with
const usb_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/misc/keyspan_remote.c

@@ -85,7 +85,7 @@ static const unsigned short keyspan_key_table[] = {
 };
 
 /* table of devices that work with this driver */
-static struct usb_device_id keyspan_table[] = {
+static const struct usb_device_id keyspan_table[] = {
 	{ USB_DEVICE(USB_KEYSPAN_VENDOR_ID, USB_KEYSPAN_PRODUCT_UIA11) },
 	{ }					/* Terminating entry */
 };