Test fails due to some VNFDs have an invalid policy type

[Ayumu Ueha]

Added the process to check the type of policies in tosca-parser. [1]
When using tosca-parser with this change, some VNFDs fail to validate policies.

[1] https://review.opendev.org/c/openstack/tosca-parser/+/763144

Here are the Zuul logs:
---
\tInvalidTypeError: Type "tosca.datatypes.nfv.ScaleInfo" is not a valid type.
\t\tFile /usr/lib/python3.8/runpy.py, line 194, in _run_module_as_main
\t\t\treturn _run_code(code, main_globals, None,
...
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/tacker/common/csar_utils.py, line 543, in load_csar_data
\t\t\ttosca = ToscaTemplate(zip_path, None, True)
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/.tox/py38/src/tosca-parser/toscaparser/tosca_template.py, line 103, in __init__
\t\t\tself.topology_template = self._topology_template()
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/.tox/py38/src/tosca-parser/toscaparser/tosca_template.py, line 118, in _topology_template
\t\t\treturn TopologyTemplate(self._tpl_topology_template(),
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/.tox/py38/src/tosca-parser/toscaparser/topology_template.py, line 62, in __init__
\t\t\tself.policies = self._policies()
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/.tox/py38/src/tosca-parser/toscaparser/topology_template.py, line 150, in _policies
\t\t\tpolicyObj.validate()
\t\tFile /home/zuul/src/opendev.org/openstack/tacker/.tox/py38/src/tosca-parser/toscaparser/policy.py, line 96, in validate
\t\t\tprop.validate()
...
---

Need to modify the VNFD definition so that validation passes successfully.
The following modification may be required:
- lack of VNFD type definitions
- lack of required parameters
- and so on..

[Yoshito Ito (ito.yoshito)]

I believe this bug is fixed in [1]. It seems "Closes-Bug:" doesn't work.

[1] https://review.opendev.org/c/openstack/tacker/+/769083

[Yasufumi Ogawa (yasufum)]

Thanks for update.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tacker 5.0.0.0rc1 release candidate.