atl2: add atl2 driver

Driver for Atheros L2 10/100 network device. Includes necessary
changes for Kconfig, Makefile, and pci_ids.h.

Signed-off-by: Chris Snook <csnook@redhat.com>
Signed-off-by: Jay Cliburn <jacliburn@bellsouth.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index f1624b3..90a132a 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2213,6 +2213,7 @@
 
 #define PCI_VENDOR_ID_ATTANSIC		0x1969
 #define PCI_DEVICE_ID_ATTANSIC_L1	0x1048
+#define PCI_DEVICE_ID_ATTANSIC_L2	0x2048
 
 #define PCI_VENDOR_ID_JMICRON		0x197B
 #define PCI_DEVICE_ID_JMICRON_JMB360	0x2360