Hard-code ld.so paths for all architectures
    
    This supports multiple ld.so files in a cleaner way.  Also
    forward-port multiple libc.so.6 file handling in
    wrap-find-debuginfo.sh from downstream.  This also incorporates
    the “nm --format=posix“ change from #2115831 downstream.
    
    Co-authored-by: Tulio Magno Quites Machado Filho <tuliom@redhat.com>