Use virtualenv_path for all virtualenvs

ansible/compute-node-flavors.yml

ansible/compute-node-provide.yml

ansible/container-image-build.yml

ansible/external-net.yml

ansible/group_vars/all/kolla

ansible/ipa-build.yml

ansible/ipa-images.yml

...le/overcloud-introspection-rules-dell-lldp-workaround.yml

ansible/overcloud-introspection-rules.yml

ansible/provision-net.yml

ansible/roles/kolla-ansible/defaults/main.yml

ansible/seed-introspection-rules.yml

ansible/test-image-centos-cloud.yml

ansible/test-image.yml

ansible/test-keypair.yml

ansible/test-project.yml

kayobe/kolla_ansible.py