Title: #5884: [Backport][ipa-4-9] Add SHA384withRSA as a certificate signing algorithm
This PR was opened automatically because PR #5868 was pushed to master and backport to
ipa-4-9 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/5884/head:pr5884
git checkout pr5884