[CORD-3026] Unify the usage of imagePullPolicy in helm-charts

Change-Id: I6135a81060eeb7f2831ce9c7207339f92017c10e
diff --git a/examples/pull-always-values.yaml b/examples/pull-always-values.yaml
index 75a185a..de15672 100644
--- a/examples/pull-always-values.yaml
+++ b/examples/pull-always-values.yaml
@@ -16,7 +16,7 @@
 
 # Set all image tags to "candidate" to use imagebuilder's local images
 
-# in xos-core and rcord-lite charts
+# in xos-core, rcord-lite, onos and voltha charts
 imagePullPolicy: 'Always'
 
 # in service charts
@@ -34,3 +34,5 @@
   imagePullPolicy: 'Always'
 vrouter:
   imagePullPolicy: 'Always'
+xos-gui:
+  imagePullPolicy: 'Always'