tests/functional: Mark the MIPS replay tests as flaky

tests/functional: Mark the MIPS replay tests as flaky

MIPS test_replay.py often times out (likely hang) under GitLab CI:

  2/21 qemu:func-thorough+func-mips64el-thorough+thorough / func-mips64el-replay   TIMEOUT   180.12s   killed by signal 15 SIGTERM

The console.log file is empty, and recording.logs only shows:

  qemu-system-mips64el: terminating on signal 15 from pid 344

Since this is a long term issue affecting our CI, disable the tests.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20251031094118.28440-2-philmd@linaro.org>