paramaterizing helm repo url

Change-Id: Ic82d92e3614b11faa320e5573ce743e10f7ed651
diff --git a/Jenkinsfile-attworkflow-build b/Jenkinsfile-attworkflow-build
index 04da1c7..697eeb5 100644
--- a/Jenkinsfile-attworkflow-build
+++ b/Jenkinsfile-attworkflow-build
@@ -54,7 +54,7 @@
             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 cord ${helmRepoUrl}
                 helm repo add incubator http://storage.googleapis.com/kubernetes-charts-incubator
                 helm repo update
                 """