Tidy linker scripts

[Alan Modra]

On Mon, Sep 28, 2009 at 09:41:17AM +0200, Tristan Gingold wrote:
> Do we really want that ?  That breaks backward compatibility as I now  
> that some of our customers use
> 'ld -r' with linker scripts.  They use scripts to merge some sections.

All I've done is use an empty default script for ld -r on cr16, crx,
and tic54x since those target scripts obviously had not even
considered ld -r.  (It doesn't really make sense to specify memory
regions for ld -r.)  Other targets still have ld -r default scripts,
and user provided ld -r scripts should work on all targets.

-- 
Alan Modra
Australia Development Lab, IBM