[patch] prevent libnosys from being build on the SPU

[Jeff Johnston]

Ken Werner wrote:
> Hi,
>
> This patch prevents libnosys from being build on the SPU target. It introduces 
> a config_libnosys flag to indicate whether to build libnosys or not.
>
> Ken
>   
Not sure why you care to stop libnosys, but ok, patch checked in.

-- Jeff J.