As we are going to reuse the same device id when re-plugging a
previously plugged SDL controller, the device interfaces are still
present in the tree and IoRegisterDeviceInterface was not updating the
device pointer.
Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>