Title: #3172: [Backport][ipa-4-7] CA: set ipaconfigstring:compatCA in cn=DOMAIN IPA CA
This PR was opened automatically because PR #3169 was pushed to master and backport to
ipa-4-7 is required.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/3172/head:pr3172
git checkout pr3172