[PATCH][s390] Fix some build warnings

[David Miller]

From: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Fri, 7 Dec 2012 14:19:45 +0530

> Here's a patch that fixes some of the build warnings on s390x.  The
> non-trivial change is the change in inclusion of sysdep.h from
> "sysdep.h" to <sysdep.h> since the code otherwise ends up including
> two different sysdep.h.
> 
> OK to commit?

This is fine.