drm/sched: Fix description of drm_sched_stop

Since commit 222b5f044159 ("drm/sched: Refactor ring mirror list
handling."), drm_sched_hw_job_reset is no longer there, so let's adjust
the doc comment accordingly.

Reviewed-by: Andrey Grodzovsky <[e-mail]>
Signed-off-by: Jonathan Neuschäfer <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/scheduler/sched_main.c

···
 EXPORT_SYMBOL(drm_sched_increase_karma);
 
 /**
- * drm_sched_hw_job_reset - stop the scheduler if it contains the bad job
+ * drm_sched_stop - stop the scheduler
  *
  * @sched: scheduler instance
- * @bad: bad scheduler job
  *
  */
 void drm_sched_stop(struct drm_gpu_scheduler *sched)