Xen & Dom0 Kernel updated

I’ve just updated the kernel-xen and xen packages used in my Xen Repos for EL6.

Kernel Changelog:

* Sun Jul 31 2011 Steven Haigh <netwiz@crc.id.au>
- Brought kernel config inline with stock EL6 kernels
- Fix: xen/blkback: don't fail empty barrier requests
- Revert "xen/blkback: When writting barriers set the sector number to zero..."
- blktap: Fix reference to freed struct request.
- Merged in 2.6.32.43
- Fixed minor bug in post-install script modifying yum.conf to recognise
  kernel-xen as a kernel package and allow multiple installs.
- Fixed bug not removing generated initramfs when removing kernel-xen pacakge

Xen Changelog:

* Wed Jul 20 2011 Michael Young <m .a.young> - 4.1.1-2
- clean up patch to solve a problem with hvmloader compiled with gcc 4.6