kvm security and bug fix update

[kvm-83-249.0.1.el5_8.4]

• Added kvm-add-oracle-workaround-for-libvirt-bug.patch
• Added kvm-Introduce-oel-machine-type.patch
  [kvm-83-249.el5_8.4]
• kvm-kernel-KVM-unmap-pages-from-the-iommu-when-slots-are-remove.patch [bz#814151]
• CVE: CVE-2012-2121
• Resolves: bz#814151
  (CVE-2012-2121 kvm: device assignment page leak [rhel-5.8])
  [kvm-83-249.el5_8.3]
• kvm-fix-l1_map-buffer-overflow.patch [bz#816207]
• Resolves: bz#816207
  (qemu-kvm segfault in tb_invalidate_phys_page_range())
  [kvm-83-249.el5_8.2]
• kvm-kernel-KVM-Ensure-all-vcpus-are-consistent-with-in-kernel-i.patch [bz#808205]
• Resolves: bz#808205
  (CVE-2012-1601 kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency [rhel-5.8.z])
  [kvm-83-249.el5_8.1]
• kvm-posix-aio-compat-fix-thread-accounting-leak.patch [bz#802429]
• Resolves: bz#802429
  ([RHEL5.8 Snapshot2]RHEL5.8 KVMGuest hung during Guest OS booting up)