qemu-kvm security and bug fix update

1.5.3-60.el70.2 - kvm-pc-add-hotaddcpu-callback-to-all-machine-types.patch bz1094820 - Resolves: bz1094820 Hot plug CPU not working with RHEL6 machine types running on RHEL7 host. 1.5.3-60.el70.1 - kvm-iscsi-fix-indentation.patch bz1090978 - kvm-iscsi-correctly-propagate-errors-in-iscsiopen.patch...