Fixed a small typo in the loopback driver

This is probably a result of the changes from commit
854d8363 - [NET]: Dynamically allocate the loopback device, part 2
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/loopback.c

@@ -242,7 +242,7 @@ static void loopback_setup(struct net_device *dev)
 		| NETIF_F_NO_CSUM
 		| NETIF_F_HIGHDMA
 		| NETIF_F_LLTX
-		| NETIF_F_NETNS_LOCAL,
+		| NETIF_F_NETNS_LOCAL;
 	dev->ethtool_ops	= &loopback_ethtool_ops;
 	dev->header_ops		= &eth_header_ops;
 	dev->init = loopback_dev_init;