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

Change-Id: I6dc4bd70fcaf230d019dda871c2d8c4cfb92c7e7
diff --git a/xos-profiles/base-openstack/requirements.yaml b/xos-profiles/base-openstack/requirements.yaml
index 7f2578a..7c93104 100644
--- a/xos-profiles/base-openstack/requirements.yaml
+++ b/xos-profiles/base-openstack/requirements.yaml
@@ -16,11 +16,11 @@
 
 dependencies:
 - name: onos-service
-  version: 2.0.2-dev
+  version: 2.0.5
   repository: file://../../xos-services/onos-service
 - name: openstack
-  version: 1.0.0
+  version: 1.0.1
   repository: file://../../xos-services/openstack
 - name: vtn-service
-  version: 1.0.0
+  version: 1.0.1
   repository: file://../../xos-services/vtn-service