netfilter: xtables: switch table AFs to nfproto

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index 8c5a250..8804e1a 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -61,7 +61,7 @@
 	.name		= "security",
 	.valid_hooks	= SECURITY_VALID_HOOKS,
 	.me		= THIS_MODULE,
-	.af		= AF_INET,
+	.af		= NFPROTO_IPV4,
 };
 
 static unsigned int