sb/{bd82x6x,ibexpeak,lynxpoint}/early_smbus: Use macro

Change-Id: If57d785b92f0f09d9def90b8ac87833321e3cfcf
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40225
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/southbridge/intel/ibexpeak/early_smbus.c b/src/southbridge/intel/ibexpeak/early_smbus.c
index 0c99a22..b87c872 100644
--- a/src/southbridge/intel/ibexpeak/early_smbus.c
+++ b/src/southbridge/intel/ibexpeak/early_smbus.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /* This file is part of the coreboot project. */
 
+#include <device/pci_ids.h>
 #include <device/pci_ops.h>
 #include <device/pci_def.h>
 #include <device/smbus_host.h>
@@ -17,7 +18,7 @@
 	pci_devfn_t dev = PCI_DEV(0x0, 0x1f, 0x3);
 
 	/* Check to make sure we've got the right device. */
-	if (pci_read_config16(dev, 0x0) != 0x8086)
+	if (pci_read_config16(dev, PCI_VENDOR_ID) != PCI_VENDOR_ID_INTEL)
 		return -1;
 
 	/* Set SMBus I/O base. */