drm/lima: Use drm_sched_job_add_syncobj_dependency()

As lima_gem_add_deps() performs the same steps as
drm_sched_job_add_syncobj_dependency(), replace the open-coded
implementation in Lima in order to simply use the DRM function.

Signed-off-by: Maíra Canal <[e-mail]>
Reviewed-by: Qiang Yu <[e-mail]>
Signed-off-by: Maíra Canal <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/lima/lima_gem.c

···
 	int i, err;
 
 	for (i = 0; i < ARRAY_SIZE(submit->in_sync); i++) {
-		struct dma_fence *fence = NULL;
-
 		if (!submit->in_sync[i])
 			continue;
 
-		err = drm_syncobj_find_fence(file, submit->in_sync[i],
-					     0, 0, &fence);
+		err = drm_sched_job_add_syncobj_dependency(&submit->task->base, file,
+							   submit->in_sync[i], 0);
 		if (err)
 			return err;
-
-		err = drm_sched_job_add_dependency(&submit->task->base, fence);
-		if (err) {
-			dma_fence_put(fence);
-			return err;
-		}
 	}
 
 	return 0;