lan743x: Enable driver to work with LAN7431

This driver was designed to work with both LAN7430 and LAN7431.
The only difference between the two is the LAN7431 has support
for external phy.

This change adds LAN7431 to the list of recognized devices
supported by this driver.

Updates for v2:
    changed 'fixes' tag to match defined format

fixes: 23f0703c ("lan743x: Add main source files for new lan743x driver")
Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/lan743x_main.c

@@ -3017,6 +3017,7 @@ static const struct dev_pm_ops lan743x_pm_ops = {
 
 static const struct pci_device_id lan743x_pcidev_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_SMSC, PCI_DEVICE_ID_SMSC_LAN7430) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_SMSC, PCI_DEVICE_ID_SMSC_LAN7431) },
 	{ 0, }
 };
 

drivers/net/ethernet/microchip/lan743x_main.h

@@ -548,6 +548,7 @@ struct lan743x_adapter;
 /* SMSC acquired EFAR late 1990's, MCHP acquired SMSC 2012 */
 #define PCI_VENDOR_ID_SMSC		PCI_VENDOR_ID_EFAR
 #define PCI_DEVICE_ID_SMSC_LAN7430	(0x7430)
+#define PCI_DEVICE_ID_SMSC_LAN7431	(0x7431)
 
 #define PCI_CONFIG_LENGTH		(0x1000)