net: remove VLANClientState members now in NetClientInfo

Add a NetClientInfo pointer to VLANClientState and use that
for the typecode and function pointers.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 4f8d89e..2f201ff 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -129,7 +129,7 @@
     if (!n->nic->nc.peer)
         return 0;
 
-    if (n->nic->nc.peer->type != NET_CLIENT_TYPE_TAP)
+    if (n->nic->nc.peer->info->type != NET_CLIENT_TYPE_TAP)
         return 0;
 
     n->has_vnet_hdr = tap_has_vnet_hdr(n->nic->nc.peer);