[LinuxBIOS] copy_secondary_start_to_1m_below() and non-smp

[Richard Smith]

>
> Yh Lu, this is your patch that broke things, I assume you will fix?
>

I don't mind fixing it. (I already have for my tree) I just don't know
which fix is prefered.  Either add a wrapper around the call or pull
the definition out and make it compile to a empty function like it
does when _RAMBASE is set to a large value.

--
Richard A. Smith