Fix tarball building error missing log-api.conf
Fix tarball building error missing log-api.conf

Commit d243ed35 removed etc/monasca/log-api.conf, but it
was still included in the setup.cfg data_files to copy,
triggering a tarball-build job error.

Change-Id: I698b91bb36e4e9af4710584e7a887b34b35e3b5b

openstack/monasca-log-api,stackforge/monasca-log-api,stackforge/monasca-log-api,openstack/monasca-log-api,openstack/monasca-log-api,stackforge/monasca-log-api