netfilter: install missing headers

iptables imports headers from (the unifdefed headers of a)
kernel tree, but some headers happened to not be installed.
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>

include/linux/netfilter/Kbuild

@@ -14,8 +14,11 @@ header-y += xt_NFQUEUE.h
 header-y += xt_RATEEST.h
 header-y += xt_SECMARK.h
 header-y += xt_TCPMSS.h
+header-y += xt_TCPOPTSTRIP.h
+header-y += xt_TPROXY.h
 header-y += xt_comment.h
 header-y += xt_connbytes.h
+header-y += xt_connlimit.h
 header-y += xt_connmark.h
 header-y += xt_conntrack.h
 header-y += xt_dccp.h
@@ -31,6 +34,7 @@ header-y += xt_mark.h
 header-y += xt_multiport.h
 header-y += xt_owner.h
 header-y += xt_pkttype.h
+header-y += xt_quota.h
 header-y += xt_rateest.h
 header-y += xt_realm.h
 header-y += xt_recent.h
@@ -40,6 +44,8 @@ header-y += xt_statistic.h
 header-y += xt_string.h
 header-y += xt_tcpmss.h
 header-y += xt_tcpudp.h
+header-y += xt_time.h
+header-y += xt_u32.h
 
 unifdef-y += nf_conntrack_common.h
 unifdef-y += nf_conntrack_ftp.h

include/linux/netfilter_ipv6/Kbuild

@@ -11,6 +11,7 @@ header-y += ip6t_length.h
 header-y += ip6t_limit.h
 header-y += ip6t_mac.h
 header-y += ip6t_mark.h
+header-y += ip6t_mh.h
 header-y += ip6t_multiport.h
 header-y += ip6t_opts.h
 header-y += ip6t_owner.h