Fixing typo in voltha-scale-measurement pipeline setup

Change-Id: I85f610dd8c49614979af2d256a11075671e479e2
diff --git a/jjb/voltha-scale.yaml b/jjb/voltha-scale.yaml
index 3427aef..a1a37ef 100644
--- a/jjb/voltha-scale.yaml
+++ b/jjb/voltha-scale.yaml
@@ -136,7 +136,7 @@
           time-trigger: "H H/4 * * *"
           onuPerPon: 20
           ponPorts: 10
-          expectedOnus: 64
+          expectedOnus: 200
           BBSIMdelay: 200
           withOnosApps: true
           flowStatInterval: 5