Updated openstack/openstack
Project: openstack/neutron  242fa2d19c40d77d1b3d16a0c672e872ca312aa4

NSX: Do a single query for all gateway devices

When creating a network gateway, do a single query for all
gateway devices, rather than a distinct query for each device.

Change-Id: I9e66539eb36ae75d3dcdd8a9073d2a2f69447e98
Closes-Bug: 1320278