qemu: Implement a stub cpuArchDriver.baseline() handler for arm
qemu: Implement a stub cpuArchDriver.baseline() handler for arm

Openstack Nova calls virConnectBaselineCPU() during initialization
of the instance to get a full list of CPU features.
This patch adds a stub to arm-specific code to handle
this request (no actual work is done).

Signed-off-by: Oleg Strikov <f9c2e26bb78c757b024259fd6820f5914319755d@canonical.com>

nertpinx/libvirt,datto/libvirt,VenkatDatta/libvirt,crobinso/libvirt,jardasgit/libvirt,nertpinx/libvirt,libvirt/libvirt,fabianfreyer/libvirt,zippy2/libvirt,shugaoye/libvirt,olafhering/libvirt,nertpinx/libvirt,jardasgit/libvirt,olafhering/libvirt,fabianfreyer/libvirt,datto/libvirt,shugaoye/libvirt,agx/libvirt,jardasgit/libvirt,datto/libvirt,andreabolognani/libvirt,elmarco/libvirt,jardasgit/libvirt,andreabolognani/libvirt,agx/libvirt,taget/libvirt,VenkatDatta/libvirt,crobinso/libvirt,andreabolognani/libvirt,crobinso/libvirt,elmarco/libvirt,jardasgit/libvirt,andreabolognani/libvirt,libvirt/libvirt,jfehlig/libvirt,zippy2/libvirt,agx/libvirt,nertpinx/libvirt,rlaager/libvirt,elmarco/libvirt,eskultety/libvirt,olafhering/libvirt,rlaager/libvirt,shugaoye/libvirt,VenkatDatta/libvirt,andreabolognani/libvirt,datto/libvirt,datto/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,libvirt/libvirt,libvirt/libvirt,rlaager/libvirt,jfehlig/libvirt,rlaager/libvirt,olafhering/libvirt,crobinso/libvirt,taget/libvirt,fabianfreyer/libvirt,rlaager/libvirt,agx/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,eskultety/libvirt,eskultety/libvirt,elmarco/libvirt,eskultety/libvirt,VenkatDatta/libvirt,elmarco/libvirt,jfehlig/libvirt,agx/libvirt,taget/libvirt,zippy2/libvirt,shugaoye/libvirt,taget/libvirt,eskultety/libvirt,zippy2/libvirt,taget/libvirt