Added withMonitoring to voltha-patch-test job template

Change-Id: I1147172c6b6ab986295f787aeb73581d7ebe103d
diff --git a/jjb/voltha-e2e.yaml b/jjb/voltha-e2e.yaml
index 08a2f97..1f1eb3c 100755
--- a/jjb/voltha-e2e.yaml
+++ b/jjb/voltha-e2e.yaml
@@ -1577,6 +1577,7 @@
     volthaHelmChartsChange: ''
     extraHelmFlags: ''
     enableMacLearning: false
+    withMonitoring: false
     robot-args: ''
     branch-regexp: '{all-branches-regexp}'
     testTargets: |
@@ -1688,6 +1689,11 @@
           default: '{registry}'
           description: 'Which registry to use (amazon vs menlo)'
 
+      - bool:
+          name: withMonitoring
+          default: '{withMonitoring}'
+          description: 'Option to install Prometheus'
+
       - string:
           name: logLevel
           default: '{logLevel}'