Fix initialization for migration tool

The quotas are inspected as part of the migration of resources
from the legacy plugin to the merged plugin. In order for the
migration tool to be able to use the quotas, they must be
initialized.

Change-Id: Ia8dffcbdb9f246a54fbe93a152e86ef1b49e0161

gbpservice/tools/validate/cli.py

@@ -16,6 +16,7 @@
 import sys
 
 from oslo_config import cfg
+from neutron.api.v2 import router
 from neutron.common import config
 from neutron import manager
 from neutron_lib.plugins import directory
@@ -43,6 +44,7 @@ def main():
                    " search paths (~/.neutron/, ~/, /etc/neutron/, /etc/) and"
                    " the '--config-file' option!"))
 
+    router.APIRouter.factory({})
     manager.init()
 
     gbp_plugin = directory.get_plugin('GROUP_POLICY')