Updated openstack/openstack
Project: openstack/neutron  f863e9c07711df8dd447693c45c7ac147718087a

Only fetch port_id from SG binding table

Change a query to only retrieve the port_id instead of
every column from the row of security group binding info.

Partial-Bug: #1373851
Change-Id: I0fba9c9623898ee52590207ebbb728503bb59a5b