Updated translations

Commands run:-
$ python setup.py extract_messages
$ python setup.py update_catalog --no-fuzzy-matching \
  --ignore-obsolete=true
$ source \
  ../openstack-infra/project-config/jenkins/scripts/common_translation_update.sh
$ setup_loglevel_vars
$ cleanup_po_files cinder

Change-Id: I73f3bdccb4be98df95fa853864e465f4d83a8884