[PATCH] enable RTAS /proc for PowerPC/CHRP platform

[Paul Mackerras]

Olaf Hering writes:

> About 32bit/64bit, maybe VmallocTotal from /proc/meminfo can be used.
> incredible large numer == must be a 64bit kernel
> No idea how reliable it is. There are those 36bit systems, but I bet
> they dont run a distro.

They only have 32-bit effective addresses and therefore a similar
VmallocTotal to any other 32-bit powerpc machine.

Paul.