session: pass sep.opaque to listen session

Change-Id: I34ce2cc4585bfbd679d7d66d5bef69ddb268bb57
Type: improvement
Signed-off-by: Mohammed Hawari <mohammed@hawari.fr>

src/vnet/session/session.c

@@ -1476,6 +1476,7 @@ session_listen (session_t * ls, session_endpoint_cfg_t * sep)
    * worker because local tables (for ct sessions) are not backed by a fib */
   ls = listen_session_get (s_index);
   ls->connection_index = tc_index;
+  ls->opaque = sep->opaque;
 
   return 0;
 }