Enabling monitoring in experimental-multi-stack scale job

Change-Id: I09efef324be815852443267ea4b792786aee4a45
diff --git a/jjb/voltha-scale.yaml b/jjb/voltha-scale.yaml
index 9e3ae5b..99f2813 100644
--- a/jjb/voltha-scale.yaml
+++ b/jjb/voltha-scale.yaml
@@ -89,7 +89,7 @@
           'disable-job': false
           # trigger on Feb 29th (a.k.a only trigger it manually)
           time-trigger: "H 0 29 2 *"
-          withMonitoring: false
+          withMonitoring: true
           logLevel: WARN
           volthaStacks: 5
           olts: 2