squash: fix and simplify required_in_root
    
    If required target is a symbol link, create the link then following the
    link. If it's a directory, create new directory, else just move it.
    
    Signed-off-by: Kairui Song <kasong@redhat.com>
    (cherry picked from commit 11ce69e4bd9172cf54251ea62bb4a5ead1700fd6)
    
    Resolves: #1691705
    
    patch_name: 0019.patch
    present_in_specfile: true
    location_in_specfile: 19
    squash_commits: true