Re-enabling Job on Berlin POD: adtran@2.6

Change-Id: I35f40079ce2e615051478671d4646187b3457cf6
diff --git a/jjb/voltha-test/voltha-nightly-jobs.yaml b/jjb/voltha-test/voltha-nightly-jobs.yaml
index a682632..e9e960e 100644
--- a/jjb/voltha-test/voltha-nightly-jobs.yaml
+++ b/jjb/voltha-test/voltha-nightly-jobs.yaml
@@ -151,7 +151,7 @@
           default: '{cordTesterChange}'
           description: 'Download a change for gerrit in the kind-voltha repo, example value: "refs/changes/32/19132/1"'
 
-      # NOTE is this needed/used?
+      # this is used in the Adtran DT job
       - string:
           name: openoltAdapterChart
           default: '{openoltAdapterChart}'