vppinfra: change vlib_register_node so it takes format string for node name

This allows specifying both c string and vector for node name
and removes need for crafting temporary string.

Type: improvement
Change-Id: I0b016cd70aeda0f68eb6f9171c5152f303be7369
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h
index b864fec..61a0857 100644
--- a/src/vlib/node_funcs.h
+++ b/src/vlib/node_funcs.h
@@ -1211,7 +1211,8 @@
 /* Register new packet processing node.  Nodes can be registered
    dynamically via this call or statically via the VLIB_REGISTER_NODE
    macro. */
-u32 vlib_register_node (vlib_main_t * vm, vlib_node_registration_t * r);
+u32 vlib_register_node (vlib_main_t *vm, vlib_node_registration_t *r,
+			char *fmt, ...);
 
 /* Register all node function variants */
 void vlib_register_all_node_march_variants (vlib_main_t *vm);