[PATCH][aarch64] Fix the big endian loader name

[Joseph Myers]

On Fri, 6 Mar 2015, Carlos O'Donell wrote:

> Roland, please correct me if I'm wrong, but I think the consensus
> was that all machine-dependent macros should move out of the top-level
> config.h.in, and into the machine directories.

That's bug 14068.  (The wiki todo list identifies some other cases where 
we still need to get architecture-specific cases out of generic files.)

-- 
Joseph S. Myers
joseph@codesourcery.com