Rename sgi GENERIC and RAMDISK with -IP32 suffixes, and have the build
machinery minimally cope with this.
Discussed with and reluctantely accepted by deraadt@; we both dislike
losing the ``naturally comes out of your fingers'' kernel names and the
``one size fits all'' logic; but for now I don't see any easy way to
get a single kernel binary able to run on multiple IP## flavours.