Switch puppet-lint to ubuntu-trusty
Switch puppet-lint to ubuntu-trusty

Move gate-{name}-puppet-lint to ubuntu-trusty nodes.
Also gerrit-git-prep should be immediately after print-template-name so
that we can install packages out of the repos bindep specification file.

Change-Id: I35ac410f70dacadc5722331a70eacefebd48ae7f

openstack-infra/project-config,Tesora/tesora-project-config,dongwenjuan/project-config,noorul/os-project-config,Tesora/tesora-project-config,noorul/os-project-config,openstack-infra/project-config,dongwenjuan/project-config