[NETFILTER]: x_tables: add statistic match

Add statistic match which is a combination of the nth and random matches.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 5543c7b..85a7e17 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -375,6 +375,12 @@
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NETFILTER_XT_MATCH_STATISTIC
+	tristate '"statistic" match support'
+	depends on NETFILTER_XTABLES
+	help
+	  statistic module
+
 config NETFILTER_XT_MATCH_STRING
 	tristate  '"string" match support'
 	depends on NETFILTER_XTABLES