Adding incubator repo before installing Kafka

Change-Id: Iea9ae171250f0525020ece973808e21c8425f1df
diff --git a/Jenkinsfile-attworkflow-build b/Jenkinsfile-attworkflow-build
index 4d35818..6e3deec 100644
--- a/Jenkinsfile-attworkflow-build
+++ b/Jenkinsfile-attworkflow-build
@@ -51,10 +51,11 @@
                     }
                 }
             }
-            stage('Add CORD repository') {
+            stage('Add Helm repositories') {
                 sh returnStdout: true, script: """
                 export KUBECONFIG=$WORKSPACE/${configBaseDir}/${configKubernetesDir}/${configFileName}.conf
                 helm repo add cord https://charts.opencord.org
+                helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
                 helm repo update
                 """
                 timeout(1) {