Pin puppetlabs_spec_helper to 1.1.1
Pin puppetlabs_spec_helper to 1.1.1

Version 1.2.0 of puppetlabs_spec_helper pulled in a version gem with
ruby 2.2 requirements.
TripleO CI has ruby 2.0 so we need to pin the gem.

Change-Id: I614ce29e83265ee48bb5f35fdd4a956346b0c69d

dprince/tripleo-heat-templates,trozet/opnfv-tht,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht