[NET] rules: Protocol independant mark selector

Move mark selector currently implemented per protocol into
the protocol independant part.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 8e2f473..68542b5 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -13,6 +13,8 @@
 	atomic_t		refcnt;
 	int			ifindex;
 	char			ifname[IFNAMSIZ];
+	u32			mark;
+	u32			mark_mask;
 	u32			pref;
 	u32			flags;
 	u32			table;