misc: Fix the return type of the go back vty function...
Without this we will get warnings about incompatible assignments
diff --git a/openbsc/src/bsc_hack.c b/openbsc/src/bsc_hack.c
index 3710440..7be0360 100644
--- a/openbsc/src/bsc_hack.c
+++ b/openbsc/src/bsc_hack.c
@@ -198,7 +198,7 @@
extern int bts_model_bs11_init(void);
extern int bts_model_nanobts_init(void);
-extern int bsc_vty_go_parent(struct vty *vty);
+extern enum node_type bsc_vty_go_parent(struct vty *vty);
static struct vty_app_info vty_info = {
.name = "OpenBSC",