SEBA-556 Use Jenkins to publish VOLTHA :latest images to Docker Hub

Change-Id: I21973ab073999ee646a4153870ad547f73a4fb95
diff --git a/jjb/voltha-publish.yaml b/jjb/voltha-publish.yaml
index 8ec5c41..0e03be5 100644
--- a/jjb/voltha-publish.yaml
+++ b/jjb/voltha-publish.yaml
@@ -8,7 +8,7 @@
     jobs:
       - 'voltha-publish':
           project-regexp: 'voltha'
-          branch-regexp: 'voltha-1.6'
+          branch-regexp: '^(master|voltha-1.6)$'
           executor-node: 'imagebuilder'
           dependency-jobs: ''