* [rnp] remove verbose flag during botan unpacking.
* [rnp] use as much make jobs, as available.
* [rnp] stick to the $SRC folder during the build.
* [rnp] automatically detect fuzzers and ignore possible chrpath error.
* [rnp] Add afl engine
* Add fuzz_dump and fuzz_keyring to the exception list
These binaries - from https://github.com/rnpgp/rnp/tree/master/src/fuzzing -
are very tiny and just call into the library with a single API,
and are not staticly compiled - so they have very few UBSAN calls.
Undefined sanitizer should now work, and the honggfuzz engine as well.
Upstream changes supported enabling these, and when I did so I
renamed one of the variables.