SEBA-977 add missing time trigger

Change-Id: I549a9e4ca6d61173c23a62fecf9e665479b5bed0
diff --git a/jjb/device-management.yaml b/jjb/device-management.yaml
index ea1b9fc..aa8014f 100644
--- a/jjb/device-management.yaml
+++ b/jjb/device-management.yaml
@@ -244,4 +244,7 @@
               branches:
                 - branch-compare-type: PLAIN
                   branch-pattern: 'master'
+      - timed: |
+                 TZ=America/Los_Angeles
+                 {time-trigger}