qemu: Refactor qemuMigrationFinish
qemu: Refactor qemuMigrationFinish

To get rid of a giant if-else block which is very easy to get lost in.

Signed-off-by: Jiri Denemark <62bdf77dc47919a4d59a91822129d14633cfca81@redhat.com>

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