Update the list information for kexec and kdump

There is a new list for kexec/kdump discussion.

Signed-off-by: Simon Horman <horms@verge.net.au>
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>