fib: Fix the display (or lack of) for fib node types in dependent children lists

Type: fix

When registering a new FIB node type, no name was required on the API, and so no name was printed.

Signed-off-by: Neale Ranns <neale@graphiant.com>
Change-Id: I8a99cf29c194637a550061b0a5e9782ffe8b31dd

src/plugins/ioam/lib-vxlan-gpe/vxlan_gpe_ioam.c

@@ -751,7 +751,8 @@ void
 vxlan_gpe_ioam_interface_init (void)
 {
   vxlan_gpe_ioam_main_t *hm = &vxlan_gpe_ioam_main;
-  hm->fib_entry_type = fib_node_register_new_type (&vxlan_gpe_ioam_vft);
+  hm->fib_entry_type =
+    fib_node_register_new_type ("vxlan-gpe", &vxlan_gpe_ioam_vft);
   return;
 }