USSD: Add Core USSD handling + VTY routing config to HLR

Change-Id: I3cfd7cd401ea32b7e92f1124d129099d9f7dc6e6
diff --git a/src/hlr.c b/src/hlr.c
index 0b1ff4f..79c4c86 100644
--- a/src/hlr.c
+++ b/src/hlr.c
@@ -559,6 +559,7 @@
 	vty_info.tall_ctx = hlr_ctx;
 
 	g_hlr = talloc_zero(hlr_ctx, struct hlr);
+	INIT_LLIST_HEAD(&g_hlr->euse_list);
 
 	rc = osmo_init_logging2(hlr_ctx, &hlr_log_info);
 	if (rc < 0) {