smc911x: Add support for LAN921{5,7,8} chips from SMSC

LAN92{5,7,8} chips from SMSC are register compatible with LAN911{5,6,7,8}
controllers, and only add support for HP Auto-MDIX. LAN9218 doesn't have
an external MII interface.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
index 3d19d00..8aa7460 100644
--- a/drivers/net/smc911x.c
+++ b/drivers/net/smc911x.c
@@ -685,8 +685,10 @@
 	 * PHY#1 to PHY#31, and then PHY#0 last.
 	 */
 	switch(lp->version) {
-		case 0x115:
-		case 0x117:
+		case CHIP_9115:
+		case CHIP_9117:
+		case CHIP_9215:
+		case CHIP_9217:
 			cfg = SMC_GET_HW_CFG(lp);
 			if (cfg & HW_CFG_EXT_PHY_DET_) {
 				cfg &= ~HW_CFG_PHY_CLK_SEL_;