Assert SSLFatal on keylog failure

Assert SSLFatal on keylog failure

We hit an check_failure assert during memfail testing in
ssl_read_state_machine, based on a return of WORK_ERROR without an
SSLFatal call being made.  This occurs because, if we fail in
ssl_log_secret (which we do due to memfail testing, we don't actually
assert an SSL fatal error.

Fix it by adding the SSLFatal call

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28216)