Title: #1137: ipa-kdb: support KDB DAL version 7.0
krb5-1.16 includes DAL version 7, which changes the signature of
audit_as_req to include local and remote address parameters.
This patch just enables building against the new DAL version, but
doesn't use the new information for anything.
To pull the PR as Git branch:
git remote add ghfreeipa https://github.com/freeipa/freeipa
git fetch ghfreeipa pull/1137/head:pr1137
git checkout pr1137