add separate postinst

package/iptables/Makefile

@@ -5,7 +5,7 @@ include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		iptables
 PKG_VERSION:=		1.4.21
-PKG_RELEASE:=		2
+PKG_RELEASE:=		3
 PKG_MD5SUM:=		536d048c8e8eeebcd9757d0863ebb0c0
 PKG_DESCR:=		netfilter firewalling software
 PKG_SECTION:=		firewall

package/iptables/files/ip6tables.postinst

@@ -0,0 +1,4 @@
+#!/bin/sh
+. $IPKG_INSTROOT/etc/functions.sh
+
+add_rcconf iptables firewall6 NO

package/iptables/files/iptables.postinst

@@ -2,4 +2,3 @@
 . $IPKG_INSTROOT/etc/functions.sh
 
 add_rcconf iptables firewall NO
-add_rcconf iptables firewall6 NO