[PATCH 1/2] bus: mvebu-mbus: Provide stub function for mvebu_mbus_get_io_win_info()

[Andrew Lunn]

> Actually arm64 mvebu SoC such as the Armada 3700 do not have mbus bus
> but can still reuse the same driver than the other mvebu SoC. So in
> this case I would prefer that the function return an error.

O.K. An error would be good, assuming the code actually catches it.
I think the code change in patch [2/2] did not catch the error.

  Andrew