incorrect rmo_top handling in prom_init

[Olaf Hering]

 On Fri, Mar 03, Benjamin Herrenschmidt wrote:

> On Thu, 2006-03-02 at 19:55 +0100, Olaf Hering wrote:
> > My iBook1 has 2 memory regions in reg. Depending on how I boot it
> > (vmlinux+initrd) or zImage.initrd, it will not boot with current Linus
> > tree.
> > rmo_top should be 160MB instead of 32MB.
> 
> Does that fix it ?

Yes.