[coreboot] PATCH: Fix CMOS Tables support for all boards.

[Myles Watson]

> Rev 5653.
>
> Thanks,
> Myles
>
> Not sure why there were no errors, but:
>
>       9 src/include/pc80/mc146818rtc.h:89:26: warning: option_table.h: No
> such file or directory

That's odd.  I don't see that warning.  Does it have to do with
parallel compilation and insufficient dependency checking?  Which
boards have the warning?

Thanks,
Myles