Update afl to rev 47 via SR 779153
    
    https://build.opensuse.org/request/show/779153
    by user msmeissn + dimstar_suse
    - updated to 2.61c
      - use -march=native if available
      - most tools now check for mistyped environment variables
      - gcc 10 is now supported
      - the memory safety checks are now disabled for a little more speed during
        fuzzing (only affe