[BUG] VirtualDisk's capacityInBytes not works for vm.AddDevice

[beorereleverion]

Describe the bug
VirtualDisk's capacityInKB attribute is deprecated in vSphere API 5.5 but without this vm.AddDevice doesn't work

Disk didn't created.

To Reproduce
create new disk for vm with funciton like in govc(https://github.com/vmware/govmomi/blob/master/govc/vm/disk/create.go#L166)
but change string 166 disk.CapacityInBytes = int64(cmd.Bytes)

Expected behavior
disk created and added to VM

Affected version
github.com/vmware/govmomi v0.27.1

[github-actions]

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[beorereleverion]

https://vdc-download.vmware.com/vmwb-repository/dcr-public/da47f910-60ac-438b-8b9b-6122f4d14524/16b7274a-bf8b-4b4c-a05e-746f2aa93c8c/doc/vim.vm.device.VirtualDisk.html

[HakanSunay]

create new disk for vm with funciton like in govc(https://github.com/vmware/govmomi/blob/master/govc/vm/disk/create.go#L166)

Let's clarify one thing - did you use:

$ govc vm.disk.create -vm $name -name $name/disk1 -size 10G

or you've written code similar to govc/vm.disk/create.go and observed that vm.AddDevice doesn't work if capacityInBytes is not specified?

[beorereleverion]

I wrote a code where capacityInBytes is used. That doesn't work.
Then I wrote the code where capacityInKB is used. That's how it worked.
But capacityInKB deprecated - vmware-doc