ipsec: Restore larval states and socket policies in dump

The commit commit 4c563f7669c10a12354b72b518c2287ffc6ebfb3 ("[XFRM]:
Speed up xfrm_policy and xfrm_state walking") inadvertently removed
larval states and socket policies from netlink dumps.  This patch
restores them.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 46914b7..b7754b1 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1077,6 +1077,7 @@
 	struct hlist_head *chain = policy_hash_bysel(&pol->selector,
 						     pol->family, dir);
 
+	list_add_tail(&pol->bytype, &xfrm_policy_bytype[pol->type]);
 	hlist_add_head(&pol->bydst, chain);
 	hlist_add_head(&pol->byidx, xfrm_policy_byidx+idx_hash(pol->index));
 	xfrm_policy_count[dir]++;