qemu: Fix mis-merge of qemuBuildChannelsCommandLine
qemu: Fix mis-merge of qemuBuildChannelsCommandLine

Commit id '3cdcc910' misapplied a merge of commit id '019244751'
to place the "-chardev" command after formatting the character
backend value.

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