e1000: add support for 82545GM 64bit PCI-X copper variant

This PCI-X e1000 variant works by just adding in the correct
PCI IDs in the appropriate places.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/include/pci_ids.h b/include/pci_ids.h
index d061017..165456b 100644
--- a/include/pci_ids.h
+++ b/include/pci_ids.h
@@ -1827,6 +1827,7 @@
 #define PCI_DEVICE_ID_INTEL_82545EM_FIBER	0x1011
 #define PCI_DEVICE_ID_INTEL_82546EB_FIBER	0x1012
 #define PCI_DEVICE_ID_INTEL_82540EM_LOM		0x1015
+#define PCI_DEVICE_ID_INTEL_82545GM_COPPER	0x1026
 #define PCI_DEVICE_ID_INTEL_82559		0x1030
 
 #define PCI_DEVICE_ID_INTEL_82562ET	0x1031