Updated openstack/openstack
Project: openstack/tempest  1bc8355ce2d3286aaa592d94cd834363c141d3c8

Fix use of code name in services decorator

This commit fixes an incorrect usage of ceilometer in the services
decorator, telemetry is the correct service tag name. This also adds
a unit test to catch the incorrect usage of a service tag.

Change-Id: I5c231ec3ba064013f8d5fc2f49dbdf28e5c637c1