[PATCH v4] powerpc: Avoid code patching freed init sections

[Michael Ellerman]

Andreas Schwab <schwab at linux-m68k.org> writes:

> On Sep 14 2018, Michael Neuling <mikey at neuling.org> wrote:
>
>> This stops us from doing code patching in init sections after they've
>> been freed.
>
> This breaks booting on PowerBook6,7, crashing very early.

Crud, sorry.

My CI setup tests with the mac99 qemu model, but that boots happily, not
sure why.

cheers