[ONOS-7557] Add new Fabrics TestMachine to Jenkins and Schedule tests

Change-Id: Idea1de8490d24e4da8028bd33c95f6954d95ecd5
diff --git a/jjb/OnosSystemTest/onos-test-freestyle.yaml b/jjb/OnosSystemTest/onos-test-freestyle.yaml
index 26391aa..7981709 100644
--- a/jjb/OnosSystemTest/onos-test-freestyle.yaml
+++ b/jjb/OnosSystemTest/onos-test-freestyle.yaml
@@ -12,6 +12,7 @@
     station-type:
       - 'VM'
       - 'BM'
+      - 'Fabric'
 
 - job-free-version-plate: &job-free-version-plate
     name: job-free-version-plate
@@ -495,7 +496,7 @@
     properties:
 
       - build-discarder:
-         num-to-keep: 30
+         num-to-keep: 50
 
     parameters: