[kmac,dv] Verify `fifo_empty` status interrupt
In PR #21657 we changed the fifo_empty interrupt from event to status. kmac_scoreboard currently doesn't model and check that interrupt; we should correct that.
Software is currently not using the fifo_empty interrupt and we may thus want to consider de-prioritizing this task @andreaskurth .
Discussed in triage: same as for the similar HMAC issue, we move this to M5
This would be good to get. Maybe something for @martin-velay after taking care of the same task for HMAC?
@martin-velay started working on this and has a first draft PR ready here: #23942. Unfortunately, the work is not yet finished and Martin was OoO this week. Since this issue isn't super critical (see previous comments), I am moving this to M7 now.
Closed as https://github.com/lowRISC/opentitan/pull/23942 has been merged