Description of problem:
`ceph_orch_host` module require to pass both `address` and `name` to add host

How reproducible: Always


Steps to Reproduce:
Use below playbook 
```
---

- name: Test 'ceph_orch_host' module
  hosts: localhost
  gather_facts: false
  become: true
  any_errors_fatal: true
  tasks:
    - name: Add host node with valid IP address
      ceph_orch_host:
        name: rhceph5x-5node-1 

```

Actual results:
Fails to add host when address is not passed to playbook while adding cephadm host.

```
The full traceback is:
  File "/tmp/ansible_ceph_orch_host_payload_0hr7cz_d/ansible_ceph_orch_host_payload.zip/ansible/module_utils/basic.py", line 1677, in _check_required_if
    check_required_if(spec, param)
  File "/tmp/ansible_ceph_orch_host_payload_0hr7cz_d/ansible_ceph_orch_host_payload.zip/ansible/module_utils/common/validation.py", line 275, in check_required_if
    raise TypeError(to_native(msg))
fatal: [localhost]: FAILED! => changed=false 
  invocation:
    module_args:
      docker: false
      labels: []
      name: rhceph5x-5node-1
      set_admin_label: false
      state: present
  msg: 'state is present but all of the following are missing: address'

```

Expected results:

As cephadm command support to add host without passing host address, `ceph_orch_host` module should work without it. Refer below command
```
ceph orch host add rhceph5x-5node-1
```


Additional info: