dsinstance: add proflie when tracking certificate
When the DS certificate gets untracked then tracked again (via
dsinstance.start_tracking_certificate()), it loses its profile
configuration. Although it is the default profile, we want to
retain the explicit reference. Ensure we add the profile when
re-tracking the DS certificate.
Part of: https://pagure.io/freeipa/issue/7991
Reviewed-By: Rob Crittenden <rcritten@redhat.com>