<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
I would like to be able to set the keyboard layout for graphical console through ansible, as it's already possible via API and UI

https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html/rest_api_guide/types#types-display
==> keyboard_layout

##### ISSUE TYPE
- Feature Idea

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

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
In countries like Germany, I would like to setup the keyboard layout native to german. This is possible by API and UI, but not using ansible.

<!--- Paste example playbooks or commands between quotes below -->
```yaml
ovirt_vm:
  graphical_console:
    protocol:
      - vnc
    keyboard_layout: de_DE          
```

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

) if self.param('cpu_pinning') else None,
                mode=otypes.CpuMode(self.param('cpu_mode')) if self.param('cpu_mode') else None,
            ) if any((
                self.param('cpu_cores'),
                self.param('cpu_sockets'),
                self.param('cpu_threads'),
                self.param('cpu_mode'),
                self.param('cpu_pinning')
            )) else None,
            cpu_shares=self.param('cpu_shares'),
            os=otypes.OperatingSystem(
                type=self.param('operating_system'),
                boot=otypes.Boot(
                    devices=[
                        otypes.BootDevice(dev) for dev in self.param('boot_devices')
                    ],
                ) if self.param('boot_devices') else None,
                cmdline=self.param('kernel_params') if self.param('kernel_params_persist') else None,
                initrd=self.param('initrd_path') if self.param('kernel_params_persist') else None,
                kernel=self.param('kernel_path') if self.param('kernel_params_persist') else None,
            ) if (
                self.param('operating_system') or self.param('boot_devices') or self.param('kernel_params_persist')
            ) else None,
            type=otypes.VmType(
                self.param('type')
            ) if self.param('type') else None,
            memory=convert_to_bytes(
                self.param('memory')
            ) if self.param('memory') else None,
            memory_policy=otypes.MemoryPolicy(