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##### SUMMARY
<!--- Explain the problem briefly below -->
Since commit df581eb ovirt_vm is unable to find a template shared among multiple clusters in the same datacenter. Moreover, the document says that `cluster` parameter is a parameter used to define where VMs will be created. Then it should not be used to filter a template search which is not related to VM storage.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ovirt_vm

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
2.8.2
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
In RHEVM:
1. Create a cluster `cluster_a` and add a template `template_a` in this cluster
2. Create a cluster `cluster_b`

<!--- Paste example playbooks or commands between quotes below -->
```yaml

- name: Provision machine
  ovirt_vm:
    ...
    cluster: "cluster_b"
    template: "template_a"
    ...
```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
The template should be found (Behaviour before commit df581eb)

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
It raises an error

<!--- Paste verbatim command output between quotes -->
```paste below
Template with name 'template_a' and version 'None' in cluster 'cluster_b' was not found
```

numa_nodes=dict(type='list', default=[]),
        custom_properties=dict(type='list'),
        watchdog=dict(type='dict'),
        host_devices=dict(type='list'),
        graphical_console=dict(type='dict'),
        exclusive=dict(type='bool'),
        export_domain=dict(default=None),
        export_ova=dict(type='dict'),
        force_migrate=dict(type='bool'),
        migrate=dict(type='bool', default=None),
        next_run=dict(type='bool'),
        snapshot_name=dict(type='str'),
        snapshot_vm=dict(type='str'),
    )
    module = AnsibleModule(
        argument_spec=argument_spec,
        supports_check_mode=True,
        required_one_of=[['id', 'name']],
        required_if=[
            ('state', 'registered', ['storage_domain']),
        ],
        required_together=[['snapshot_name', 'snapshot_vm']]
    )
    check_sdk(module)
    check_params(module)
    try:
        state = module.params['state']
        auth = module.params.pop('auth')
        connection = create_connection(auth)
        vms_service = connection.system_service().vms_service()