updated lower constraints jobs for include dependencies

This patch updates our local zuul.yaml to define the required projects
so they are pulled into the jobs.

Change-Id: I1e668f9413363954f148f35f88c4c0687ce4f2c0

.zuul.yaml

@@ -2,7 +2,16 @@
     name: vmware-tox-lower-constraints
     parent: openstack-tox-lower-constraints
     timeout: 5400
-
+    required-projects:
+      - openstack/neutron
+      - openstack/networking-l2gw
+      - openstack/networking-sfc
+      - openstack/neutron-lbaas
+      - openstack/vmware-nsxlib
+      - openstack/neutron-fwaas
+      - openstack/neutron-dynamic-routing
+      - openstack/neutron-vpnaas
+      - openstack/tap-as-a-service
 - project:
     check:
       jobs: