Fixing device-management-interface_unit-test

Change-Id: Ice5ee94e4a97cf39ed94191ecbcee48390d8037e
diff --git a/jjb/verify/device-management-interface.yaml b/jjb/verify/device-management-interface.yaml
index c4498e7..26964d5 100644
--- a/jjb/verify/device-management-interface.yaml
+++ b/jjb/verify/device-management-interface.yaml
@@ -8,6 +8,7 @@
     jobs:
       - 'verify-device-management-interface-jobs':
           branch-regexp: '{all-branches-regexp}'
+          allow-empty-results: true
 
 - job-group:
     name: 'verify-device-management-interface-jobs'