Fix createOpenstackEnvInDocker

Currently some tf pipelines like test-evpn.groovy are failing,
because project name is not overriden properly.

Related-Prod: https://mirantis.jira.com/browse/PRODX-48892
Change-Id: I4de6f45e9ef784ac9ae11b1672ad2e127f96d7b5
1 file changed