Update davfs2 to version 1.6.1 / rev 6 via SR 941700
    
    https://build.opensuse.org/request/show/941700
    by user dirkmueller + dimstar_suse
    - update to 1.6.1:
      * Add Neon version 0.32.
      * mount.davfs.c, get_options: Ignore all unknown options.
      * mount_davfs.c, write_mtab_entry: Add option _netdev to utab-entry.