Adding missing trigger to VOLTHA-2.7 physical POD jobs

Change-Id: Idb783981fdd5915400bacec44a9f7718c3035b0a
diff --git a/jjb/voltha-test/voltha-nightly-jobs.yaml b/jjb/voltha-test/voltha-nightly-jobs.yaml
index 3e1f0f8..a682632 100644
--- a/jjb/voltha-test/voltha-nightly-jobs.yaml
+++ b/jjb/voltha-test/voltha-nightly-jobs.yaml
@@ -237,6 +237,11 @@
             branches:
               - '{branch}'
 
+    triggers:
+      - timed: |
+                 TZ=America/Los_Angeles
+                 H {time} * * *
+
 # VOLTHA Test Job
 # This job is automatically triggered after a build job has successfully completed
 - job-template: