Provided reduced overlays yi*.bmp break rmm

[xannor]

Using the provided 0 pixed bmps for the Yi logo causes rmm to crash. Need to research if it is an issue with the files or the fact that there are two sets in the image one yi*.bmp and kami*.bmp

[xannor]

@roleoroleo do you have any suggestions as to why rrmm would crash? maybe it expects parity between the two sets of stamps? for now I am just going to leave the watermarks.

[roleoroleo]

I had the same problem in allwinner.
Probably when it loads the image, it expects a fixed format with a fixed size.

If the image has a different size, rmm crashes.