cosmetic: tweak params of hlr_controlif_setup()

Cosmetically prepare for adding new CTRL commands in hlr_controlif_setup():
- drop unused 'gs' param.
- use ctrl_interface_setup_dynip2(), so far with default CTRL nodes; custom
  nodes will be added soon.

Prepares: I98ee6a06b3aa6a67adb868e0b63b0e04eb42eb50
Change-Id: I63004a7953b04988449697dbc5d55d7ed0c6d82d
diff --git a/src/ctrl.c b/src/ctrl.c
index 3bd4d8f..b49765d 100644
--- a/src/ctrl.c
+++ b/src/ctrl.c
@@ -94,14 +94,14 @@
 	return rc;
 }
 
-struct ctrl_handle *hlr_controlif_setup(struct hlr *ctx,
-					struct osmo_gsup_server *gs)
+struct ctrl_handle *hlr_controlif_setup(struct hlr *hlr)
 {
 	int rc;
-	struct ctrl_handle *hdl = ctrl_interface_setup_dynip(ctx,
-							     ctx->ctrl_bind_addr,
-							     OSMO_CTRL_PORT_HLR,
-							     NULL);
+	struct ctrl_handle *hdl = ctrl_interface_setup_dynip2(hlr,
+							      hlr->ctrl_bind_addr,
+							      OSMO_CTRL_PORT_HLR,
+							      NULL,
+							      0);
 	if (!hdl)
 		return NULL;