[patch] fix amd64bsd-nat.c compilation

[Joel Brobecker]

> Ok to commit?
[...]
> 2012-03-11  Andreas Tobler  <andreast@fgznet.ch>
> 
> 	* amd64bsd-nat.c: Include amd64bsd-nat.h

Looks good to me. Please go ahead and commit.

Thanks for the fix,
-- 
Joel