vty: register libosmocore's FSM introspection commands

Change-Id: Id268e44de6eb873138f38720a61cabe589a5d2c8
diff --git a/src/pcu_vty.c b/src/pcu_vty.c
index b0d1ac6..6db8b05 100644
--- a/src/pcu_vty.c
+++ b/src/pcu_vty.c
@@ -1195,6 +1195,7 @@
 	logging_vty_add_cmds();
 	osmo_stats_vty_add_cmds();
 	osmo_talloc_vty_add_cmds();
+	osmo_fsm_vty_add_cmds();
 
 	install_node(&pcu_node, config_write_pcu);
 	install_element(CONFIG_NODE, &cfg_pcu_cmd);