L2 BD: introduce a BD interface on which to send UU packets

Change-Id: I21ad6b04c19c8735d057174b1f260a59f2812241
Signed-off-by: Neale Ranns <nranns@cisco.com>
diff --git a/src/plugins/gtpu/gtpu.c b/src/plugins/gtpu/gtpu.c
index 4f58f11..027af9b 100644
--- a/src/plugins/gtpu/gtpu.c
+++ b/src/plugins/gtpu/gtpu.c
@@ -578,8 +578,8 @@
       si->flags |= VNET_SW_INTERFACE_FLAG_HIDDEN;
 
       /* make sure tunnel is removed from l2 bd or xconnect */
-      set_int_l2_mode (gtm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0, 0, 0,
-		       0);
+      set_int_l2_mode (gtm->vlib_main, vnm, MODE_L3, t->sw_if_index, 0,
+		       L2_BD_PORT_TYPE_NORMAL, 0, 0);
       vec_add1 (gtm->free_gtpu_tunnel_hw_if_indices, t->hw_if_index);
 
       gtm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;