drm/msm: Remove unnecessary pm_runtime_get/put

We already enable gpu power from msm_gpu_submit(), so avoid a duplicate
pm_runtime_get/put from msm_job_run().

Signed-off-by: Akhil P Oommen <[e-mail]>
Patchwork: https://patchwork.freedesktop.org/patch/498390/
Link: https://lore.kernel.org/r/20220819015030.v5.1.Icf1e8f0c9b3e7e9933c3b48c70477d0582f3243f@changeid
Signed-off-by: Rob Clark <[e-mail]>

drivers/gpu/drm/msm/msm_ringbuffer.c

···
 		msm_gem_unlock(obj);
 	}
 
-	pm_runtime_get_sync(&gpu->pdev->dev);
-
 	/* TODO move submit path over to using a per-ring lock.. */
 	mutex_lock(&gpu->lock);
 
 	msm_gpu_submit(gpu, submit);
 
 	mutex_unlock(&gpu->lock);
-
-	pm_runtime_put(&gpu->pdev->dev);
 
 	return dma_fence_get(submit->hw_fence);
 }