[parisc-linux] a pretty big change

[Paul Bame]

Bad failures occur (for me) with the hpux boot loader.  I have no
idea whether I introduced them, but I might have.  It looks
like the first instruction of vmlinux doesn't even get executed,
so probably something in the SOM header is telling the hpux boot loader to
do something stupid.  som_relocate may need an upgrade, but I'm
stumped about what's going wrong.

	-P