[freeipa PR#4785][opened] [Backport][ipa-4-8] libotp: Replace NSS with OpenSSL HMAC

[abbra]

URL: https://github.com/freeipa/freeipa/pull/4785
Author: abbra
 Title: #4785: [Backport][ipa-4-8] libotp: Replace NSS with OpenSSL HMAC
Action: opened

PR body:
"""
This PR was opened automatically because PR #4780 was pushed to master and backport to ipa-4-8 is required.
"""

To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/4785/head:pr4785
git checkout pr4785