media: ttpci: budget-ci: constify pci_device_id

pci_device_id are not supposed to change at runtime. All functions
working with pci_device_id provided by <media/drv-intf/saa7146.h>
and <linux/pci.h> work with const pci_device_id. So mark the non-const
structs as const.
Signed-off-by: NArvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/pci/ttpci/budget-ci.c

@@ -1538,7 +1538,7 @@ MAKE_BUDGET_INFO(ttc1501, "TT-Budget C-1501 PCI", BUDGET_TT);
 MAKE_BUDGET_INFO(tt3200, "TT-Budget S2-3200 PCI", BUDGET_TT);
 MAKE_BUDGET_INFO(ttbs1500b, "TT-Budget S-1500B PCI", BUDGET_TT);
 
-static struct pci_device_id pci_tbl[] = {
+static const struct pci_device_id pci_tbl[] = {
 	MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100c),
 	MAKE_EXTENSION_PCI(ttbci, 0x13c2, 0x100f),
 	MAKE_EXTENSION_PCI(ttbcci, 0x13c2, 0x1010),