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

Change-Id: I6dc4bd70fcaf230d019dda871c2d8c4cfb92c7e7
diff --git a/xos-profiles/att-workflow/templates/tosca-job.yaml b/xos-profiles/att-workflow/templates/tosca-job.yaml
index 792a56c..a51aaf7 100644
--- a/xos-profiles/att-workflow/templates/tosca-job.yaml
+++ b/xos-profiles/att-workflow/templates/tosca-job.yaml
@@ -36,8 +36,8 @@
       restartPolicy: OnFailure
       containers:
         - name: {{ .Chart.Name }}-tosca-loader
-          image: {{ tpl .Values.tosca_loaderImage . | quote }}
-          imagePullPolicy: {{ .Values.imagePullPolicy }}
+          image: {{ .Values.global.registry }}{{ .Values.images.tosca_loader.repository }}:{{ tpl .Values.images.tosca_loader.tag . }}
+          imagePullPolicy: {{ .Values.images.tosca_loader.pullPolicy }}
           env:
             - name: XOS_USER
               value: {{ .Values.xosAdminUser }}