[patch] CHRP free...

Hey Cort,
	I got bored and went ahead and did it.  The attatched patch gives
"support" for the __chrp attribute just like the __{pmac,apus,prep} ones.
Granted it doesn't free up that much as there isn't a whole lot of chrp
code in the common kernel (free'ed up 8k on my system), it allows room for
the future ofcourse.  Also I might have missed other chrp code or data
thats not in arch/ppc/kernel/chrp*.c so if you have any elsewhere i guess
you can add the proper stuff.


ani