video: fbdev: smscufx: 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>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

drivers/video/fbdev/smscufx.c

@@ -122,7 +122,7 @@ static const u32 smscufx_info_flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
 	FBINFO_VIRTFB |	FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT |
 	FBINFO_HWACCEL_COPYAREA | FBINFO_MISC_ALWAYS_SETPAR;
 
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
 	{USB_DEVICE(0x0424, 0x9d00),},
 	{USB_DEVICE(0x0424, 0x9d01),},
 	{},