inteltool: memory: log PCI id of unknown devices

Change-Id: I25396e5480c45729710b16345f997c78e8bcbccb
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79363
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>

util/inteltool/memory.c

@@ -237,6 +237,7 @@ int print_mchbar(struct pci_dev *nb, struct pci_access *pacc, const char *dump_s
 		break;
 	default:
 		printf("Error: Dumping MCHBAR on this northbridge is not (yet) supported.\n");
+		printf("Error: Unknown PCI id: %08x/%08x\n", nb->vendor_id, nb->device_id);
 		return 1;
 	}