qemu: command: Move disk serial validation to qemuCheckDiskConfig
qemu: command: Move disk serial validation to qemuCheckDiskConfig

olafhering/libvirt,jardasgit/libvirt,crobinso/libvirt,eskultety/libvirt,libvirt/libvirt,jardasgit/libvirt,jardasgit/libvirt,jfehlig/libvirt,jfehlig/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,crobinso/libvirt,libvirt/libvirt,jfehlig/libvirt,jardasgit/libvirt,jardasgit/libvirt,eskultety/libvirt,zippy2/libvirt,nertpinx/libvirt,olafhering/libvirt,zippy2/libvirt,crobinso/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,eskultety/libvirt,zippy2/libvirt,olafhering/libvirt,eskultety/libvirt,nertpinx/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,crobinso/libvirt,andreabolognani/libvirt,nertpinx/libvirt,eskultety/libvirt,fabianfreyer/libvirt,zippy2/libvirt,nertpinx/libvirt,olafhering/libvirt,andreabolognani/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,libvirt/libvirt,libvirt/libvirt