[PATCH roland/nptl-sparc] Move SPARC code out of nptl/sysdeps/sparc/.

[David Miller]

From: Roland McGrath <roland@hack.frob.com>
Date: Thu, 12 Jun 2014 14:36:33 -0700 (PDT)

> Not tested at all, but this should not change anything.
> Note it presumes the previously-posted patches on the same branch.

Sorry for not reviewing this earlier, I planned to do it earlier today.

It looks fine to me, and if there should be some fallout I'll fix it up
for you.