net: Put flowi_* prefix on AF independent members of struct flowi

I intend to turn struct flowi into a union of AF specific flowi
structs.  There will be a common structure that each variant includes
first, much like struct sock_common.

This is the first step to move in that direction.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d1770e0..1448c50 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -448,8 +448,8 @@
 		int junk;
 
 		fl.fl6_flowlabel = 0;
-		fl.oif = sk->sk_bound_dev_if;
-		fl.mark = sk->sk_mark;
+		fl.flowi_oif = sk->sk_bound_dev_if;
+		fl.flowi_mark = sk->sk_mark;
 
 		if (optlen == 0)
 			goto update;