Fix sdist tarball name in setup.cfg
Fix sdist tarball name in setup.cfg

Fix name parameter in recently-added setup.cfg so that
tripleo-ui tarballs continue to be named "tripleo-ui.tar.gz"
and all appear under http://tarballs.openstack.org/tripleo-ui/

Change-Id: I223eae15605ab0f8d97ee8606c05dffe7332ab77

knowncitizen/tripleo-ui,knowncitizen/tripleo-ui,knowncitizen/tripleo-ui,knowncitizen/tripleo-ui