Update dvd+rw-tools to version 7.1 / rev 25 via SR 1153305
    
    https://build.opensuse.org/request/show/1153305
    by user tiwai + dimstar_suse
    - Avoid comment out of patch application that leads to failure ot
      "osc service runall"
    
    - Use %patch -P N instead of deprecated %patchN.