##### SUMMARY
Unable to use the mount mode :nocopy on volume 

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
docker_container

##### ANSIBLE VERSION
```
ansible 2.8.1
  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 = /var/lib/awx/venv/venv-Ansible-28-python27/lib/python2.7/site-packages/ansible
  executable location = /var/lib/awx/venv/venv-Ansible-28-python27/bin/ansible
  python version = 2.7.5 (default, Jun 20 2019, 20:27:34) [GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```
N/A
```

##### OS / ENVIRONMENT
AWX 3.0/docker 1.13/ RHEL7.4


##### 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: start nexus_ihm services
  docker_container:
    name: nexus_ihm
    image: '{{ docker_images.nexus_ihm.image }}:{{ docker_images.nexus_ihm.version }}'
    state: started
    recreate: yes
    log_driver: json-file
    restart_policy: 'unless-stopped'
    hostname: nexus_ihm
    env:
      TZ: Europe/Paris
    volumes:
      - 'nfsdata:/nexus-data:nocopy'
      - 'nfsbackup:/backup'
```
##### EXPECTED RESULTS
Beeing able to access the volume within the container like in :  

```sh
[root@LX01665L ~]# docker run --rm -ti -v nfsdata:/test --name test alpine /bin/sh
/ # ls /test/
config.json  init-stdin   init-stdout
/ # exit
[root@LX01665L ~]# docker run --rm -ti -v nfsdata:/test:nocopy --name test alpine /bin/sh
/ # ls /test/
backup               etc                  kar                  port
blobs                generated-bundles    keystores            restore-from-backup
cache                health-check         lock                 tmp
db                   instances            log                  upgrades
elasticsearch        javaprefs            orient
/ #
```

##### ACTUAL RESULTS
The task crash with (NB, accordingly to the documentation in https://docs.ansible.com/ansible/latest/modules/docker_container_module.html where it's not specified beeing usable ) : 

```
fatal: [lx01665l.tb.uro.equant.com]: FAILED! => {"changed": false, "msg": "Found invalid volumes mode: nocopy"}
```

container to requested configuration. The evaluation includes the image version. If
        the image version in the registry does not match the container, the container will be
        recreated. Stop this behavior by setting C(ignore_image) to I(True).
      - I(Warning:) This option is ignored if C(image) or C(*) is used for the C(comparisons) option.
    type: bool
    default: no
    version_added: "2.2"
  image:
    description:
      - Repository path and tag used to create the container. If an image is not found or pull is true, the image
        will be pulled from the registry. If no tag is included, C(latest) will be used.
      - Can also be an image ID. If this is the case, the image is assumed to be available locally.
        The C(pull) option is ignored for this case.
    type: str
  init:
    description:
      - Run an init inside the container that forwards signals and reaps processes.
        This option requires Docker API >= 1.25.
    type: bool
    default: no
    version_added: "2.6"
  interactive:
    description:
      - Keep stdin open after a container is launched, even if not attached.
    type: bool
    default: no
  ipc_mode:
    description:
      - Set the IPC mode for the container. Can be one of 'container:<name|id>' to reuse another
        container's IPC namespace or 'host' to use the host's IPC namespace within the container.