[NETFILTER]: x_tables: add missing ip6t_modulename aliases

The patch will add MODULE_ALIAS("ip6t_<modulename>") where missing,
otherwise you will get

	ip6tables: No chain/target/match by that name

when xt_<modulename> is not already loaded.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_NOTRACK.c b/net/netfilter/xt_NOTRACK.c
index b7d6312..fec1aef 100644
--- a/net/netfilter/xt_NOTRACK.c
+++ b/net/netfilter/xt_NOTRACK.c
@@ -9,6 +9,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("ipt_NOTRACK");
+MODULE_ALIAS("ip6t_NOTRACK");
 
 static unsigned int
 target(struct sk_buff **pskb,