vcsa: general cleanup of variables and redmine issues.
vcsa: general cleanup of variables and redmine issues.

Resolves Redmine bug #548

Also:

- Removed the vcsa_deploy_ovf_role_path var from
  defaults/main.yml, it is called out in the vcsa
  role
- Updated with latest vCSA image path/md5/url
- Removed the Select cluster dropdown element, the
  hardcoded values create a divergence from the
  cluster names specified elsewhere
- Removed the dropdown to Resolve Redmine bug #548
- Changed the target vCenter objects to the OOB vCSA
  for the NSX Manager
- Updated NSX section to support manual inputs
- Forgot the colons on the NSX section headers
- Added NSX vCenter datacenter name
- Added NSX vCenter cluster declaratio
- Added the ovftool var

p2: Fixed merge conflict

Change-Id: I6103cae613a4fe0751413bdf042d03ee8769d0ac

vmware/ansible-role-chaperone,vmware/ansible-role-chaperone