`virtual_machine`
Fixes#7275 - a state migration was missed when `enable_disk_uuid` was
merged
```
make testacc TEST=./builtin/providers/vsphere
TESTARGS='-run=TestVSphereVirtualMachineMigrateState'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /vendor/)
TF_ACC=1 go test ./builtin/providers/vsphere -v
-run=TestVSphereVirtualMachineMigrateState -timeout 120m
=== RUN TestVSphereVirtualMachineMigrateState
--- PASS: TestVSphereVirtualMachineMigrateState (0.00s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/vsphere
0.018s
```