Using the master tag for xossh and providing an override file

Change-Id: I61aa0ad903da55ad2ea745bc022bd94524c5aada
diff --git a/xos-tools/xossh/templates/deployment.yaml b/xos-tools/xossh/templates/deployment.yaml
index 242e302..8859f74 100644
--- a/xos-tools/xossh/templates/deployment.yaml
+++ b/xos-tools/xossh/templates/deployment.yaml
@@ -46,8 +46,8 @@
                - "{{ .Values.xosshConfig.accessor.endpoint }}"
           stdin: true
           tty: true
-          image: "{{ .Values.pull_docker_registry }}{{ .Values.image.repository }}:{{ .Values.image.tag }}"
-          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          image: "{{ .Values.xosshImage }}"
+          imagePullPolicy: {{ .Values.imagePullPolicy }}
           resources:
 {{ toYaml .Values.resources | indent 12 }}
           volumeMounts: