smsc911x: Add support for SMSC LAN89218

LAN89218 is register compatible with LAN911x.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index b9016a3..c90ddb6 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -26,6 +26,7 @@
  *   LAN9215, LAN9216, LAN9217, LAN9218
  *   LAN9210, LAN9211
  *   LAN9220, LAN9221
+ *   LAN89218
  *
  */
 
@@ -1983,6 +1984,7 @@
 	case 0x01170000:
 	case 0x01160000:
 	case 0x01150000:
+	case 0x218A0000:
 		/* LAN911[5678] family */
 		pdata->generation = pdata->idrev & 0x0000FFFF;
 		break;