Allow downstream name for inventory plugin

[AlanCoding]

Testing with the collection from Automation Hub

[WARNING]:  * Failed to parse /runner/inventory/ovirt.yml with auto plugin:
Invalid value "redhat.rhv.ovirt" for configuration option "plugin_type:
inventory plugin: ansible_collections.redhat.rhv.plugins.inventory.ovirt
setting: plugin ", valid values are: ['ovirt']
  File "/usr/lib/python3.8/site-packages/ansible/inventory/manager.py", line 290, in parse_source
    plugin.parse(self._inventory, self._loader, source, cache=cache)
  File "/usr/lib/python3.8/site-packages/ansible/plugins/inventory/auto.py", line 58, in parse
    plugin.parse(inventory, loader, path, cache=cache)
  File "/usr/share/ansible/collections/ansible_collections/redhat/rhv/plugins/inventory/ovirt.py", line 238, in parse
    config = self._read_config_data(path)
  File "/usr/lib/python3.8/site-packages/ansible/plugins/inventory/__init__.py", line 239, in _read_config_data
    self.set_options(direct=config, var_options=self._vars)

[ovirt-infra]

Hello contributor, thanks for submitting a PR for this project!

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[AlanCoding]

ci test please

[mnecas]

ci add to whitelist

[mnecas]

Please add changelog

[mnecas]

LGTM

[wenottingham]

Is there going to be a release of this to galaxy/hub? Pretty please?

[mnecas]

Hi, need to merge a few other PRs and will make the release as soon as possible

[mnecas]

Released on galaxy