powerpc/pasemi/nemo: Fix low memory values for boot.

[Michael Ellerman]

Darren Stevens <darren at stevens-zone.net> writes:
> On 23/01/2017, Michael Ellerman wrote:
>>> Clearing the long long at addr 8 has been shown to fix this, so
>>> add an initalisation to head_64.S so the system will boot.
>>
>> I'd really prefer it if someone could tell me why we need to clear it.
>> But I assume no one knows?
...
>
> I took a long look today and traced the problem the 'prom_find_boot_cpu' and a
> much better patch will follow.

Awesome work, thanks.

cheers