- Update Xen patches to 2.6.31-rc8 and c/s 931.
- patches.fixes/use-totalram_pages: use totalram_pages in favor
of num_physpages for sizing boot time allocations (bnc#509753).
- patches.xen/xen-x86-per-cpu-vcpu-info: x86: use per-cpu storage
for shared vcpu_info structure.