build error with kdump shutdown hook support

[Olof Johansson]

On Wed, Jan 30, 2008 at 07:22:19PM -0800, Geoff Levand wrote:
> Hi.
> 
> It seems something is missing in the current
> linux-2.6.git (8af03e782cae1e0a0f530ddd22301cdd12cf9dc0).

See:

http://patchwork.ozlabs.org/linuxppc/patch?id=16607

Or add a separate handler instead of reusing the debugger one, either
way works for me. I went with the easier option.

-Olof