Enabling TT job

Change-Id: If50ce5f189f1af1bec53f13068722cab9528eecd
diff --git a/jjb/voltha-scale.yaml b/jjb/voltha-scale.yaml
index 5348d8f..e372cc4 100644
--- a/jjb/voltha-scale.yaml
+++ b/jjb/voltha-scale.yaml
@@ -106,6 +106,7 @@
           name: 'voltha-scale-measurements-master-2-16-32-tt-subscribers'
           build-node: 'voltha-scale-1'
           time-trigger: "H H/4 * * *"
+          disable-job: false
           olts: 2
           pons: 16
           onus: 32
@@ -781,6 +782,7 @@
     id: 'voltha-scale-measurements'
     name: '{name}'
     disabled: '{disable-job}'
+    sandbox: true
 
     description: |
       <!-- Managed by Jenkins Job Builder -->