vSphere: no dynamic networks, only manual
vSphere: no dynamic networks, only manual

vSphere CPI does [NOT support dynamic
networking](https://github.com/cloudfoundry/bosh-vsphere-cpi-release/blob/master/README.md)

Fixes:
```
Task 7 | 01:12:26 | Creating missing vms: worker/ea12a316-74d5-4c69-9690-4b231b375e5d (0) (00:00:32)
                   L Error: Unknown CPI error 'Unknown' with message 'Field ip is not optional' in 'create_vm' CPI method (CPI request ID: 'cpi-473176')
bosh task 7 —cpi
E, [2019-01-08T01:12:58.531183 #27205] ERROR -- [req_id cpi-473176]: Error in creating vm: Field ip is not optional, Backtrace - /var/vcap/data/packages/vsphere_cpi/e6bd58e420737425d5402cf41dc71a8687384dd8/lib/ruby_vim_sdk/soap/serializer.rb:39:in `serialize'
```

cunnie/deployments,cunnie/deployments