ctrl: take both address and port from vty config

Change-Id: Ib31d67591657e308eebd1e6b7e23f79e6a3656e9
diff --git a/ggsn/ggsn_main.c b/ggsn/ggsn_main.c
index 2d917c1..bc9e0c3 100644
--- a/ggsn/ggsn_main.c
+++ b/ggsn/ggsn_main.c
@@ -227,8 +227,7 @@
 	if (rc < 0)
 		exit(1);
 
-	g_ctrlh = ctrl_interface_setup_dynip(NULL, ctrl_vty_get_bind_addr(),
-					     OSMO_CTRL_PORT_GGSN, NULL);
+	g_ctrlh = ctrl_interface_setup(NULL, OSMO_CTRL_PORT_GGSN, NULL);
 	if (!g_ctrlh) {
 		LOGP(DGGSN, LOGL_ERROR, "Failed to create CTRL interface.\n");
 		exit(1);