change to using master tag for some containers

Change-Id: I48c34f2a4c54673fca11a1e09191125b6e2c6248
diff --git a/xos-profiles/att-workflow/requirements.yaml b/xos-profiles/att-workflow/requirements.yaml
index 211304d..591685d 100644
--- a/xos-profiles/att-workflow/requirements.yaml
+++ b/xos-profiles/att-workflow/requirements.yaml
@@ -24,7 +24,7 @@
   version: 2.0.0
   repository: file://../../xos-services/fabric
 - name: volt
-  version: 2.0.1
+  version: 2.0.2-dev
   repository: file://../../xos-services/volt
 - name: fabric-crossconnect
   version: 1.0.0-dev