Don't require junit test results on voltha-bbsim repo

Change-Id: Id5c04119f71613551fbb2742bede3e96ea5e3c9e
diff --git a/jjb/verify/voltha-bbsim.yaml b/jjb/verify/voltha-bbsim.yaml
index b43dc6d..e4b2052 100644
--- a/jjb/verify/voltha-bbsim.yaml
+++ b/jjb/verify/voltha-bbsim.yaml
@@ -19,6 +19,7 @@
           dependency-jobs: 'verify_voltha-bbsim_licensed'
       - 'make-unit-test':
           dest-gopath: "gerrit.opencord.org"
+          junit-allow-empty-results: true
 
 - job-group:
     name: 'publish-voltha-bbsim-jobs'