net/core: dev_mc_sync_multiple calls wrong helper

The dev_mc_sync_multiple function is currently calling
__hw_addr_sync, and not __hw_addr_sync_multiple.  This will result in
addresses only being synced to the first device from the set.

	Corrected by calling the _multiple variant.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Tested-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev_addr_lists.c

@@ -801,7 +801,7 @@ int dev_mc_sync_multiple(struct net_device *to, struct net_device *from)
 		return -EINVAL;
 
 	netif_addr_lock_nested(to);
-	err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len);
+	err = __hw_addr_sync_multiple(&to->mc, &from->mc, to->addr_len);
 	if (!err)
 		__dev_set_rx_mode(to);
 	netif_addr_unlock(to);