Resolves issue with vmware_migrate_vmk module for v2.0
When this module was written back in May 2015 we were using 1.9.x. Being lazy I added to param the objects that the other functions would need. What I have noticed is in 2.0 exit_json is trying to jsonify those complex objects and failing. This PR resolves that issue with the vmware_migrate_vmk module.
@kamsz reported this issue in https://github.com/ansible/ansible-modules-extras/pull/1568
Playbook
```
- name: Migrate Management vmk
local_action:
module: vmware_migrate_vmk
hostname: "{{ mgmt_ip_address }}"
username: "{{ vcsa_user }}"
password: "{{ vcsa_pass }}"
esxi_hostname: "{{ hostvars[item].hostname }}"
device: vmk1
current_switch_name: temp_vswitch
current_portgroup_name: esx-mgmt
migrate_switch_name: dvSwitch
migrate_portgroup_name: Management
with_items: groups['foundation_esxi']
```
Module Testing
```
TASK [Migrate Management vmk] **************************************************
task path: /opt/autodeploy/projects/emmet/tasks/deploy/migrate_vmk.yml:3
ESTABLISH LOCAL CONNECTION FOR USER: root
localhost EXEC ( umask 22 && mkdir -p "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695485.85-245405603184252 )" && echo "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695485.85-245405603184252 )" )
localhost PUT /tmp/tmpdlhr6t TO /root/.ansible/tmp/ansible-tmp-1454695485.85-245405603184252/vmware_migrate_vmk
localhost EXEC LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 /usr/bin/python /root/.ansible/tmp/ansible-tmp-1454695485.85-245405603184252/vmware_migrate_vmk; rm -rf "/root/.ansible/tmp/ansible-tmp-1454695485.85-245405603184252/" > /dev/null 2>&1
localhost EXEC ( umask 22 && mkdir -p "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695490.35-143738865490168 )" && echo "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695490.35-143738865490168 )" )
localhost PUT /tmp/tmpqfZqh1 TO /root/.ansible/tmp/ansible-tmp-1454695490.35-143738865490168/vmware_migrate_vmk
localhost EXEC LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 /usr/bin/python /root/.ansible/tmp/ansible-tmp-1454695490.35-143738865490168/vmware_migrate_vmk; rm -rf "/root/.ansible/tmp/ansible-tmp-1454695490.35-143738865490168/" > /dev/null 2>&1
localhost EXEC ( umask 22 && mkdir -p "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695491.96-124154332968882 )" && echo "$( echo $HOME/.ansible/tmp/ansible-tmp-1454695491.96-124154332968882 )" )
localhost PUT /tmp/tmpf3rKZq TO /root/.ansible/tmp/ansible-tmp-1454695491.96-124154332968882/vmware_migrate_vmk
localhost EXEC LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 /usr/bin/python /root/.ansible/tmp/ansible-tmp-1454695491.96-124154332968882/vmware_migrate_vmk; rm -rf "/root/.ansible/tmp/ansible-tmp-1454695491.96-124154332968882/" > /dev/null 2>&1
ok: [foundation-vcsa -> localhost] => (item=foundation-esxi-01) => {"changed": false, "invocation": {"module_args": {"current_portgroup_name": "esx-mgmt", "current_switch_name": "temp_vswitch", "device": "vmk1", "esxi_hostname": "cscesxtmp001", "hostname": "172.27.0.100", "migrate_portgroup_name": "Management", "migrate_switch_name": "dvSwitch", "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", "username": "root"}, "module_name": "vmware_migrate_vmk"}, "item": "foundation-esxi-01"}
ok: [foundation-vcsa -> localhost] => (item=foundation-esxi-02) => {"changed": false, "invocation": {"module_args": {"current_portgroup_name": "esx-mgmt", "current_switch_name": "temp_vswitch", "device": "vmk1", "esxi_hostname": "cscesxtmp002", "hostname": "172.27.0.100", "migrate_portgroup_name": "Management", "migrate_switch_name": "dvSwitch", "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", "username": "root"}, "module_name": "vmware_migrate_vmk"}, "item": "foundation-esxi-02"}
ok: [foundation-vcsa -> localhost] => (item=foundation-esxi-03) => {"changed": false, "invocation": {"module_args": {"current_portgroup_name": "esx-mgmt", "current_switch_name": "temp_vswitch", "device": "vmk1", "esxi_hostname": "cscesxtmp003", "hostname": "172.27.0.100", "migrate_portgroup_name": "Management", "migrate_switch_name": "dvSwitch", "password": "VALUE_SPECIFIED_IN_NO_LOG_PARAMETER", "username": "root"}, "module_name": "vmware_migrate_vmk"}, "item": "foundation-esxi-03"}
```
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