VMWare: Remove unused exceptions

Nova exceptions UseLinkedCloneConfigurationFault and
VMwareDriverConfigurationException now is present in
oslo.vmware library, so remove it and replace all of
its usages by usages of exceptions from oslo.vmware

Change-Id: I692030cff49965fac2d8da1bb76580fe9a607b61
Merge "VMWare: Remove unused exceptions"