dmaengine: edma: Update caps->residue_granularity to match with reality

The edma can report accurate DMA position so update the residue_granularity
to DMA_RESIDUE_GRANULARITY_BURST.

Signed-off-by: Peter Ujfalusi <[e-mail]>
Signed-off-by: Vinod Koul <[e-mail]>

drivers/dma/edma.c

···
 	caps->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
 	caps->cmd_pause = true;
 	caps->cmd_terminate = true;
-	caps->residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
+	caps->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 
 	return 0;
 }