Use correct path for DIB tests
Use correct path for DIB tests

When we switched to zuul-cloner we missed the prepended openstack/ for
the downloaded repos. Also removing gerrit-git-prep since were using
zuul-cloner for the same functionality.

Change-Id: Ia9e1d943c486986a35c456733c8d4579957a5e50

openstack-infra/project-config,anbangr/osci-project-config,noorul/os-project-config,dongwenjuan/project-config,anbangr/osci-project-config,Tesora/tesora-project-config,coolsvap/project-config,openstack-infra/project-config,noorul/os-project-config,citrix-openstack/project-config,dongwenjuan/project-config,citrix-openstack/project-config,coolsvap/project-config,Tesora/tesora-project-config