separate tests for branches, replaces gerrit 10666

Change-Id: I671bffbf7f5d3cf300400161ca3de74c3c19d55d
diff --git a/jjb/verify/helm-charts.yaml b/jjb/verify/helm-charts.yaml
index 37ca0de..3c119c6 100644
--- a/jjb/verify/helm-charts.yaml
+++ b/jjb/verify/helm-charts.yaml
@@ -9,8 +9,13 @@
       - 'verify-helm-charts-jobs':
           branch-regexp: '{modern-branches-regexp}'
       - 'post-merge-helm-charts-jobs':
-          branch-regexp: '{modern-branches-regexp}'
-          timed-trigger: '{every-four-hours}'
+          branch: 'master'
+          name-extension: '-master'
+          timed-trigger: '{twice-a-day}'
+      - 'post-merge-helm-charts-jobs':
+          branch: 'cord-6.0'
+          name-extension: '-cord6.0'
+          timed-trigger: '{once-a-day}'
 
 - job-group:
     name: 'verify-helm-charts-jobs'