I think what we have here is either a red-herring of a document or a typo where it should be reading 232KW and not the 332KW it states. Also I doubt that this figure is refering to the F32 M3 engine/output, for a start the engine wouldn't carry the same coding and even if it did I highly doubt the output is being found from solely a software upgrade to the ECU, BMW may well have a sizable cushion built into the 1M's engine regarding how far it can be taken on it's internals but an extra 110hp is probably more or less the limit and most future E30 M3 customer will want to boost it's potential 450hp even further which couldn't happen if they were identical.
The two engines may well share common ground but I am almost certain that there is a sizable difference to class them as completely difference and at least far enough apart to not carry the same engine code.