xfrm: Mark flowi arg to xfrm_resolve_and_create_bundle() const.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 21d29e7b..ef899a8 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1586,7 +1586,7 @@
 
 static struct xfrm_dst *
 xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
-			       struct flowi *fl, u16 family,
+			       const struct flowi *fl, u16 family,
 			       struct dst_entry *dst_orig)
 {
 	struct net *net = xp_net(pols[0]);