[Skiboot] OPAL console rework v3

[Stewart Smith]

Oliver O'Halloran <oohall at gmail.com> writes:
> Patches 1-6 are misc cleanups of core/console.c
>
> Patches 7-10 untangle the OPAL and skiboot consoles by removing the flush
> operation from the skiboot con_ops structure and reworking the console
> init path so the platform init code doesn't need to awkwardly step around
> the dummy console forcing.
>
> Hopefully these will make the console handling inside of skiboot a little
> more approachable. In the future I'd like to further rework parts of it so
> that most of the paramter validation for the OPAL_CONSOLE_* calls can be
> handled in generic code rather than being repeated inside each OPAL console
> backend, but this series is mostly cleanups to prepare for that.

So... this looks all good to me, so series merged to master as of 366c393

-- 
Stewart Smith
OPAL Architect, IBM.