Really don't write kickstart (patch the other path too)
    
    My previous attempt at this only patched one of two possible
    paths, which doesn't happen to be the one we're currently using.
    Our current image builds actually wind up skipping the whole
    'modify the ISO's bootloader config' step that I patched before;
    instead we do direct kernel boot and pass in a cmdline via
    libvirt. This patches that path too (and moves the changes to a
    separate patch file, to keep the jobs each patch is doing clear).
    I think it's safe/correct to patch both paths.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>