i945: Add 27ac to northbridge IDs.

Change-Id: Ie2edf0738d0f27efa696b9f6c17600a97e323117
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/7484
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index 91c5c82..1aaeb3b 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -268,10 +268,13 @@
 	.ops_pci          = &intel_pci_ops,
 };
 
+static const unsigned short pci_device_ids[] = { 0x27a0, 0x27ac,
+						 0 };
+
 static const struct pci_driver mc_driver __pci_driver = {
 	.ops    = &mc_ops,
 	.vendor = PCI_VENDOR_ID_INTEL,
-	.device = 0x27a0,
+	.devices = pci_device_ids,
 };
 
 static void cpu_bus_init(device_t dev)