XOS/NEM charts, use a global registry var, split docker image name/tag/pullPolicy

Change-Id: I6dc4bd70fcaf230d019dda871c2d8c4cfb92c7e7
diff --git a/xos-gui/templates/ws-deployment.yaml b/xos-gui/templates/ws-deployment.yaml
index 9d958bb..e10d0f8 100644
--- a/xos-gui/templates/ws-deployment.yaml
+++ b/xos-gui/templates/ws-deployment.yaml
@@ -28,8 +28,8 @@
     spec:
       containers:
         - name: xos-ws
-          image: {{ .Values.xos_wsImage | quote }}
-          imagePullPolicy: {{ .Values.imagePullPolicy }}
+          image: {{ .Values.global.registry }}{{ .Values.images.xos_ws.repository }}:{{ tpl .Values.images.xos_ws.tag . }}
+          imagePullPolicy: {{ .Values.images.xos_ws.pullPolicy }}
           command: ["npm", "start", "--", "--config", "gateway-config.yml"]
           ports:
             - containerPort: 3000