[kaffe] moving config/superh to config/sh

[Dalibor Topic]

Hi Kiyo, hi all,

I'd like to rename the config/superh directory to config/sh to go with 
the usuall gnu toolchain names for superh processors (sh*).

That would let us drop the patch-config.sub-superh.diff, I believe, and 
fix the problems when config.sub in kaffe and libltdl are not in sync 
due to the patch no longer applying.

ok to proceed?

cheers,
dalibor topic