Using local charts for both voltha-infra and voltha-stack in voltha-scale test

Change-Id: I5117ee3e2bce21012560e70c30617b04c0628296
diff --git a/jjb/pipeline/voltha/master/voltha-scale-test.groovy b/jjb/pipeline/voltha/master/voltha-scale-test.groovy
index 08eb7d9..13e7a89 100644
--- a/jjb/pipeline/voltha/master/voltha-scale-test.groovy
+++ b/jjb/pipeline/voltha/master/voltha-scale-test.groovy
@@ -264,7 +264,7 @@
               stackName: "voltha1", // TODO support custom charts
               workflow: workflow,
               extraHelmFlags: stackHelmFlags,
-              localCharts: false,
+              localCharts: localCharts,
             ])
             sh """
               set +x