media: pt1: constify pci_device_id

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <linux/pci.h> work with
const pci_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/pt1/pt1.c

@@ -1202,7 +1202,7 @@ err:
 
 }
 
-static struct pci_device_id pt1_id_table[] = {
+static const struct pci_device_id pt1_id_table[] = {
 	{ PCI_DEVICE(0x10ee, 0x211a) },
 	{ PCI_DEVICE(0x10ee, 0x222a) },
 	{ },