vcenter vm hardware: update spec
update_specstructure describes the updates to virtual hardware settings of a virtual machine.
|upgrade_policy||string||Scheduled upgrade policy.
If set to NEVER, the vcenter.vm.hardware.info.upgrade_version field will be reset to unset.Optional. If unset, the value is unchanged.
|upgrade_version||string||Target hardware version to be used on the next scheduled virtual hardware upgrade.
If specified, this field must represent a newer virtual hardware version than the current virtual hardware version reported in vcenter.vm.hardware.info.version.Optional. It is only relevant when upgrade_policy has value [AFTER_CLEAN_SHUTDOWN, ALWAYS]. If vcenter.vm.hardware.update_spec.upgrade_policy is set to NEVER, this field must be unset. Otherwise, if this field is unset, default to the most recent virtual hardware version supported by the server.