The security_group_api config option was deprecated in version 13.0.0
and functionality was replaced by a 'use_neutron' configuration
option. Uses of the deprecated security_group_api option have been
updated to 'use_neutron' for a more coherent user experience.
Co-Authored-By: Sarah Ulmer <Sarah.Ulmer@ibm.com>
Change-Id: I921650d8730201c2f14deb7e679647a892dbe48a