[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_connmark.c b/net/netfilter/xt_connmark.c
index e73fa9b..1071fc5 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -29,6 +29,7 @@
 MODULE_DESCRIPTION("IP tables connmark match module");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("ipt_connmark");
+MODULE_ALIAS("ip6t_connmark");
 
 static bool
 match(const struct sk_buff *skb,