[NETFILTER]: xt_iprange: fix typo in address family

The family for iprange_mt4 should be AF_INET, not AF_INET6.
Noticed by Jiri Moravec <jim.lkml@gmail.com>.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/netfilter/xt_iprange.c

@@ -148,7 +148,7 @@ static struct xt_match iprange_mt_reg[] __read_mostly = {
 	{
 		.name      = "iprange",
 		.revision  = 1,
-		.family    = AF_INET6,
+		.family    = AF_INET,
 		.match     = iprange_mt4,
 		.matchsize = sizeof(struct xt_iprange_mtinfo),
 		.me        = THIS_MODULE,