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

Change-Id: I6dc4bd70fcaf230d019dda871c2d8c4cfb92c7e7
diff --git a/xos-services/hssdb/values.yaml b/xos-services/hssdb/values.yaml
index c412926..410178e 100644
--- a/xos-services/hssdb/values.yaml
+++ b/xos-services/hssdb/values.yaml
@@ -22,9 +22,10 @@
 nameOverride: ""
 fullnameOverride: ""
 
-imagePullPolicy: 'Always'
-
-synchronizerImage: "xosproject/hssdb-synchronizer:{{ .Chart.Version }}"
+image:
+  repository: 'xosproject/hssdb-synchronizer'
+  tag: '{{ .Chart.AppVersion }}'
+  pullPolicy: 'Always'
 
 xosAdminUser: "admin@opencord.org"
 xosAdminPassword: "letmein"
@@ -40,6 +41,7 @@
 global:
   proxySshEnabled: true
   proxySshUser: "root"
+  registry: ''
 
 resources: {}