Modify contrail branches for generateDS pkg

Contrail package generateDS does not have 5.0 branch,
so new parameter was added to be able to mirror this
package.

Change-Id: I40cdd0013bbeaa4dd15ed4c62970751737411894
diff --git a/jenkins/client/job/opencontrail/git-mirrors/downstream.yml b/jenkins/client/job/opencontrail/git-mirrors/downstream.yml
index f92d1a7..306866b 100644
--- a/jenkins/client/job/opencontrail/git-mirrors/downstream.yml
+++ b/jenkins/client/job/opencontrail/git-mirrors/downstream.yml
@@ -16,7 +16,7 @@
             - name: contrail-third-party
               branches: ${_param:contrail_branches}
             - name: contrail-generateDS
-              branches: ${_param:contrail_branches}
+              branches: ${_param:contrail_branches_generateDS}
             - name: contrail-sandesh
               branches: ${_param:contrail_branches}
             - name: contrail-packages
diff --git a/jenkins/client/job/opencontrail/init.yml b/jenkins/client/job/opencontrail/init.yml
index c6d1ca6..997d885 100644
--- a/jenkins/client/job/opencontrail/init.yml
+++ b/jenkins/client/job/opencontrail/init.yml
@@ -4,6 +4,8 @@
 parameters:
   _param:
     contrail_branches: "R3.0.2.x,R3.0.3.x,R3.1,R3.1.1.x,R3.2,R3.2.3.x,R4.0,R4.1,R5.0,master"
+    # generateDS does not have 5.0 branch
+    contrail_branches_generateDS: "R3.0.2.x,R3.0.3.x,R3.1,R3.1.1.x,R3.2,R3.2.3.x,R4.0,R4.1,master"
     contrail_kubernetes_branches: "master,release-1.2"
     contrail_dpdk_extra_branches: "mitaka,mitaka_dpdk_17_02,mitaka_dpdk_17_05,kilo,liberty-multiqueue,newton,ocata"
     contrail_ceilometer_plugin_branches: "master,R4.0,R4.1"