- Improve disk upload check
- Rebase on latest go-ovirt
- Rebase on latest terraform-provider-ovirt
- Align High Performance VMs with High Performance in RHV-UI

On the new go-ovirt SDK the logic for testing a connection was change to making a call to the engine and not just check the certificate, see[1].
This caused the logic of the test to get broken since there is no real ovirt engine to test against.

The test itself was a bit pointless anyway since it tested mostly the ovirt engine and not logic of the installer

[1] oVirt/ovirt-engine-sdk-go@92c1875