libarchive: backport rc4 crypto requirement update

Backport upstream libarchive commit 70f497f456 (As per Cryptographic
Requirements, 2017-03-19).  Discard more bytes of the RC4 keystream
to reduce the possibility of non-random bytes.
16 jobs for libarchive-backport-rc4-crypto-rec
Status Job ID Name Coverage
  External
passed ghostflow-branch-check

passed ghostflow-commit-check

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager

passed ghostflow-stager