[ARM] rpc: etherh: fix unused variable warning

Fix:
  drivers/net/arm/etherh.c:650: warning: unused variable `i'
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/net/arm/etherh.c

@@ -647,7 +647,7 @@ etherh_probe(struct expansion_card *ec, const struct ecard_id *id)
 	struct ei_device *ei_local;
 	struct net_device *dev;
 	struct etherh_priv *eh;
-	int i, ret;
+	int ret;
 	DECLARE_MAC_BUF(mac);
 
 	etherh_banner();