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

Change-Id: I7f3457882830de050d1357254fc5483faf91d03f
diff --git a/xos-services/hippie-oss/Chart.yaml b/xos-services/hippie-oss/Chart.yaml
index 1da9cf9..2a96022 100644
--- a/xos-services/hippie-oss/Chart.yaml
+++ b/xos-services/hippie-oss/Chart.yaml
@@ -1,5 +1,4 @@
 ---
-
 # Copyright 2018-present Open Networking Foundation
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,4 +15,7 @@
 
 name: hippie-oss
 description: A Helm chart for XOS's "hippie-oss" service
-version: 1.1.0-dev
+icon: https://guide.opencord.org/logos/cord.svg
+
+version: 1.1.0
+appVersion: 1.1.0