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

Change-Id: I6dc4bd70fcaf230d019dda871c2d8c4cfb92c7e7
diff --git a/xos-services/vmme/Chart.yaml b/xos-services/vmme/Chart.yaml
index 9469ede..d3907f3 100644
--- a/xos-services/vmme/Chart.yaml
+++ b/xos-services/vmme/Chart.yaml
@@ -15,4 +15,8 @@
 
 name: vmme
 description: A Helm chart for XOS's "vmme" service
-version: 1.0.1
+icon: https://guide.opencord.org/logos/cord.svg
+
+version: 1.0.2
+appVersion: 1.0.2
+