Another bug fix for Factory found during SLE12 SP2 testing.

- cpu_x86: fix libvirtd segfault when host cpu is 'qemu64'
cpumodel-vendor-crash-fix.patch
bsc#992425

- bsc#988279. Move the qemu-bridge-helper apparmor profile from the
qemu abstraction to the usr.sbin.libvirtd profile.
apparmor-qemu-bridge-helper.patch

- spec: minor improvements to logic enabling numactl and numad
support and fix nested if indentation
FATE#319979

- Update patches providing support for driver_override sysfs
interface with latest upstream variant. Dropped
pci-simplify-stub.patch and updated
pci-use-driver-override-sysfs.patch
bsc#986718

- spec: enable numactl and numad support for aarch64
FATE#319979, bsc#991377