Update to upstream 20200925 version
    
    This update also means a major update for all of the big-endian patching
    that has been done.  The older mechanism was getting to unwieldy to keep
    maintained, and too sensitive to upstream changes.  Hence, redid all of
    the old patches, and took the opportunity to make them more amenable to
    change over time.  Ultimately, the goal is to have upstream accept these
    in some form.
    
    Signed-off-by: Al Stone <ahs3@redhat.com>