[RFC] Add IBM Blue Gene/Q Platform

[Michael Neuling]

> commit f6e3c1f706cb6922349d639a74ff6c50acc8b9f8
> Author: Jimi Xenidis <jimix at pobox.com>
> Date:   Wed Dec 5 13:41:25 2012 -0500
> 
>     powerpc: Remove unecessary VSX symbols
>     
>     The symbol THREAD_VSR0 is defined to be the same as THREAD_FPR0.  Its
>     presence causes build issues with more complex configurations.
>     
>     Signed-off-by: Jimi Xenidis <jimix at pobox.com>
> 

Can you explain what these "complex configurations" are?

Mikey