Update OnosSystemTest to use the main Gerrit server connection, so there
aren't two identical Gerrit Server entries in Jenkins with different
names.

Change-Id: Ib644769582e35f29ccdef23b666b4741b092e906
diff --git a/jjb/OnosSystemTest/onos-test-freestyle.yaml b/jjb/OnosSystemTest/onos-test-freestyle.yaml
index 7ea257d..d8d2de2 100644
--- a/jjb/OnosSystemTest/onos-test-freestyle.yaml
+++ b/jjb/OnosSystemTest/onos-test-freestyle.yaml
@@ -221,7 +221,7 @@
 
     triggers:
       - gerrit:
-         server-name: 'OnosSystemTest Project Gerrit'
+         server-name: 'ONOS Project Gerrit'
          trigger-on:
            - patchset-created-event:
                exclude-drafts: false