nvram merge patch...

with all the recent talk about nvram, i decide to try and merge the pmac
nvram stuff (and eventually prep also) into drivers/char/nvram.c.  nvram.c
uses an "api" for PC and amiga, and i've added some pmacnvram support in
there.  along with the basic nvram support of /dev/nvram, i've added
support for /proc/nvram which will dump the current variables and values.

note: this patch was hacked up late last nite and is no way belived to be
working, i want to get some feedback before continuing this.  would this
be The Right solution?

when this is refined and finished, it will remove the need for
drivers/macintosh/nvram.c and arch/ppc/kernel/{pmac,prep}_nvram.c (though
i have not put in the necessary prep stuff in yet, just pmac)


any ideas/suggestions?


ani