xt_qtaguid: Fix boot panic

We need the change below because of mainline commit 351638e7de (net: pass
info struct via netdevice notifier). Otherwise we panic.

Change-Id: I7daf7513a733933fdcbaeebea7f8191f8b6a0432
Signed-off-by: John Stultz <john.stultz@linaro.org>

net/netfilter/xt_qtaguid.c

diff --git a/net/netfilter/xt_qtaguid.c b/net/netfilter/xt_qtaguid.c
index ce41f7f..2c42067 100644
--- a/net/netfilter/xt_qtaguid.c
+++ b/net/netfilter/xt_qtaguid.c
@@ -1375,7 +1375,7 @@
 
 static int iface_netdev_event_handler(struct notifier_block *nb,
 				      unsigned long event, void *ptr) {
-	struct net_device *dev = ptr;
+	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (unlikely(module_passive))
 		return NOTIFY_DONE;