<!--- Verify first that your issue is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Explain the problem briefly below -->
Customize Windows 10 guest OS with wait_for_customzation parameter set, but after many hours there is no return and the playbook just stuck there.
##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
vmware_guest
##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.10.0.dev0
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /root/.local/lib/python2.7/site-packages/ansible
  executable location = ./bin/ansible
  python version = 2.7.15+ (default, Jul  9 2019, 16:51:35) [GCC 7.4.0]
```

##### 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. -->
vSphere 6.7U3, Windows 10 guest OS 32bit with BIOS firmware

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

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

```

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

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
If something wrong with the customization in guest OS, no event in VC, then wait_for_customization should return timeout error in a not very long time.

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
no timeout error return after more than 10 hours, just stuck there.
<!--- Paste verbatim command output between quotes -->
```paste below

```

nic_dict = dict(pcnet32=vim.vm.device.VirtualPCNet32(),
                        vmxnet2=vim.vm.device.VirtualVmxnet2(),
                        vmxnet3=vim.vm.device.VirtualVmxnet3(),
                        e1000=vim.vm.device.VirtualE1000(),
                        e1000e=vim.vm.device.VirtualE1000e(),
                        sriov=vim.vm.device.VirtualSriovEthernetCard(),
                        )
        if device_type in nic_dict:
            return nic_dict[device_type]
        else:
            self.module.fail_json(msg='Invalid device_type "%s"'
                                      ' for network "%s"' % (device_type, name))
    def create_nic(self, device_type, device_label, device_infos):
        nic = vim.vm.device.VirtualDeviceSpec()
        nic.device = self.get_device(device_type, device_infos['name'])
        nic.device.wakeOnLanEnabled = bool(device_infos.get('wake_on_lan', True))
        nic.device.deviceInfo = vim.Description()
        nic.device.deviceInfo.label = device_label
        nic.device.deviceInfo.summary = device_infos['name']
        nic.device.connectable = vim.vm.device.VirtualDevice.ConnectInfo()
        nic.device.connectable.startConnected = bool(device_infos.get('start_connected', True))
        nic.device.connectable.allowGuestControl = bool(device_infos.get('allow_guest_control', True))
        nic.device.connectable.connected = True
        if 'mac' in device_infos and is_mac(device_infos['mac']):
            nic.device.addressType = 'manual'
            nic.device.macAddress = device_infos['mac']
        else:
            nic.device.addressType = 'generated'
        return nic
    def integer_value(self, input_value, name):