dmaengine: ae4dma: Register debugfs using ptdma_debugfs_setup

Use the ptdma_debugfs_setup function to register debugfs for AE4DMA DMA
engine.

Reviewed-by: Raju Rangoju <[e-mail]>
Signed-off-by: Basavaraj Natikar <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/amd/ae4dma/ae4dma-dev.c

···
 	ret = pt_dmaengine_register(pt);
 	if (ret)
 		ae4_destroy_work(ae4);
+	else
+		ptdma_debugfs_setup(pt);
 
 	return ret;
 }

drivers/dma/amd/ptdma/ptdma-debugfs.c

···
 				    &pt_debugfs_queue_fops);
 	}
 }
+EXPORT_SYMBOL_GPL(ptdma_debugfs_setup);