Only use zuul cloned git repos for code hosted at opendev.org

Filter out any repositories that will not be present in the zuul
git cache.

Change-Id: Id36c9009d75960ce2b3cb1851e60c241d8f7265e

scripts/get-ansible-role-requirements.yml

@@ -78,7 +78,8 @@
         - name: Generate list of openstack service repositories
           set_fact:
             service_git_repos: "{{ lookup('file', openstack_services_file).splitlines() |
-                                   select('contains', 'git_repo') | list |
+                                   select('contains', 'git_repo') |
+                                   select('contains', 'opendev.org') | list |
                                    replace('https://', 'file:///openstack/src/') }}"
 
         - name: Ensure overrides directory exists