VTY: install talloc context introspection commands

Change-Id: I2e1e26be1162b0fb695969e5ac265704adaf9d5c
diff --git a/src/pcu_vty.c b/src/pcu_vty.c
index 94215d7..9cae777 100644
--- a/src/pcu_vty.c
+++ b/src/pcu_vty.c
@@ -1210,6 +1210,7 @@
 
 	logging_vty_add_cmds();
 	osmo_stats_vty_add_cmds();
+	osmo_talloc_vty_add_cmds();
 
 	install_node(&pcu_node, config_write_pcu);
 	install_element(CONFIG_NODE, &cfg_pcu_cmd);