d3d11desktopdup: Don't ignore error DXGI_ERROR_UNSUPPORTED

d3d11desktopdup: Don't ignore error DXGI_ERROR_UNSUPPORTED

Although Microsoft's DXGIDesktopDuplication example is considering
the DXGI_ERROR_UNSUPPORTED as an expected error
(See https://github.com/microsoft/Windows-classic-samples/tree/master/Samples/DXGIDesktopDuplication)
it might not be recoverable error if application is
run against a discrete GPU
(See https://docs.microsoft.com/en-US/troubleshoot/windows-client/shell-experience/error-when-dda-capable-app-is-against-gpu)

Do early error out if the error happens while opening device,
instead of retrying it forever.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2208>