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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
```

if entity is None:
            self._is_new = True
    def post_update(self, entity):
        self.post_present(entity.id)
    def post_present(self, entity_id):
        
        entity = self._service.service(entity_id).get()
        self.__attach_disks(entity)
        self.__attach_nics(entity)
        self._attach_cd(entity)
        self.changed = self.__attach_numa_nodes(entity)
        self.changed = self.__attach_watchdog(entity)
        self.changed = self.__attach_graphical_console(entity)
        self.changed = self.__attach_host_devices(entity)
    def pre_remove(self, entity):
        
        if entity.status != otypes.VmStatus.DOWN:
            if not self._module.check_mode:
                self.changed = self.action(
                    action='stop',
                    action_condition=lambda vm: vm.status != otypes.VmStatus.DOWN,
                    wait_condition=lambda vm: vm.status == otypes.VmStatus.DOWN,
                )['changed']
    def __suspend_shutdown_common(self, vm_service):