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##### SUMMARY
The documentation states the instance uuid is required for the uuid parameter but the hw product uuid is used instead. 

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
vmware_guest_network

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.9.0rc1.post0
  config file = None
  configured module search path = ['/home/pernst/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.6/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 3.6.8 (default, Aug  7 2019, 17:28:10) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)]
```

##### 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 -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: Configure virtual network cards
  vmware_guest_network:
    hostname: "{{ vsphere_host }}"
    username: "{{ vsphere_user }}"
    password: "{{ vsphere_pass }}"
    validate_certs: "{{ vsphere_validate_certs | default(true) }}"
    datacenter: "{{ vsphere_target_dc }}"
    uuid: "{{ vm_facts.instance.instance_uuid }}"
  register: vm_networks
  delegate_to: localhost
```

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

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->


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

<!--- Paste verbatim command output between quotes -->
```paste below
FAILED! => {"changed": false, "msg": "Unable to find the specified virtual machine using <UUID>
```

P.S.:  I suggest the same uuid handling as in vmware_guest with an additional use_instance_uuid parameter.

)
                nic_index += 1
        return network_info
    def sanitize_network_params(self):
        network_list = []
        valid_state = ['new', 'present', 'absent']
        if len(self.params['networks']) != 0:
            for network in self.params['networks']:
                if 'state' not in network or network['state'].lower() not in valid_state:
                    self.module.fail_json(msg="Network adapter state not specified or invalid: '%s', valid values: "
                                              "%s" % (network.get('state', ''), valid_state))
                
                if network['state'].lower() == 'new' and 'name' not in network and 'vlan' not in network:
                    self.module.fail_json(msg="Please specify at least network name or VLAN name for adding new network adapter.")
                if network['state'].lower() == 'new' and 'mac' in network:
                    self.module.fail_json(msg="networks.mac is used for vNIC reconfigure, but networks.state is set to 'new'.")
                if network['state'].lower() == 'present' and 'mac' not in network and 'label' not in network and 'device_type' not in network:
                    self.module.fail_json(msg="Should specify 'mac', 'label' or 'device_type' parameter to reconfigure network adapter")
                if 'connected' in network:
                    if not isinstance(network['connected'], bool):
                        self.module.fail_json(msg="networks.connected parameter should be boolean.")
                    if network['state'].lower() == 'new' and not network['connected']:
                        network['start_connected'] = False
                if 'start_connected' in network:
                    if not isinstance(network['start_connected'], bool):
                        self.module.fail_json(msg="networks.start_connected parameter should be boolean.")
                    if network['state'].lower() == 'new' and not network['start_connected']:
                        network['connected'] = False
                
                if 'name' in network and not self.network_exists_by_name(network['name']):