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

Change-Id: I3cfd7cd401ea32b7e92f1124d129099d9f7dc6e6
diff --git a/tests/test_nodes.vty b/tests/test_nodes.vty
index 21809c8..d499962 100644
--- a/tests/test_nodes.vty
+++ b/tests/test_nodes.vty
@@ -70,6 +70,8 @@
   exit
   end
   gsup
+  euse NAME
+  no euse NAME
 
 OsmoHLR(config-hlr)# gsup
 OsmoHLR(config-hlr-gsup)# list