[PULL] x86_64 kdump fixes

[Eric W. Biederman]

These are bug fixes that were tested several months ago and I forgot to
ask for them to be pulled.  I have tested against the latest tree and
these changes still apply and build cleanly.

git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/kexec-tools-devel.git 


Eric W. Biederman (2):
      kexec-syscall.h: Document what the architecture default arch is.
      x86 crashdump: On x86_64 generate EM_X86_64 crashdump headers.

Eric