qemu: Update balloon info only if job is allowed
qemu: Update balloon info only if job is allowed

In qemuDomainUpdateCurrentMemorySize I misplaced the actual update of
the balloon size to a place where it may not be initialized. Move it a
few lines above.

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