sb/i82801ix: Use macros instead of hard-coded IDs

This patch replaces hard-coded PCI IDs with macros
from pci_ids.h and cleans up some code.

Change-Id: Ie6ea72ac49eb015ef5cbaa98ed2b3400072000b5
Signed-off-by: Felix Singer <felix.singer@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36705
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801ix/usb_ehci.c b/src/southbridge/intel/i82801ix/usb_ehci.c
index 47254f9..4c875ad 100644
--- a/src/southbridge/intel/i82801ix/usb_ehci.c
+++ b/src/southbridge/intel/i82801ix/usb_ehci.c
@@ -51,8 +51,8 @@
 }
 
 static const unsigned short pci_device_ids[] = {
-	0x293a,
-	0x293c,
+	PCI_DEVICE_ID_INTEL_82801IB_EHCI1,
+	PCI_DEVICE_ID_INTEL_82801IB_EHCI2,
 	0
 };