dmaengine: at_hdmac/trivial: rearrange CFG register bits assignment

No modification in CFG register configuration, just rearrange
bits directives to group logically and make it more readable.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/at_hdmac.c

@@ -1228,11 +1228,10 @@ static struct dma_chan *at_dma_xlate(struct of_phandle_args *dma_spec,
 	 * ignored depending on DMA transfer direction.
 	 */
 	per_id = dma_spec->args[1];
-	atslave->cfg = ATC_FIFOCFG_HALFFIFO | ATC_DST_H2SEL_HW
-		      | ATC_SRC_H2SEL_HW | ATC_DST_PER(per_id)
-		      | ATC_DST_PER_MSB(per_id)
-		      | ATC_SRC_PER_MSB(per_id)
-		      | ATC_SRC_PER(per_id);
+	atslave->cfg = ATC_FIFOCFG_HALFFIFO
+		     | ATC_DST_H2SEL_HW | ATC_SRC_H2SEL_HW
+		     | ATC_DST_PER_MSB(per_id) | ATC_DST_PER(per_id)
+		     | ATC_SRC_PER_MSB(per_id) | ATC_SRC_PER(per_id);
 	atslave->dma_dev = &dmac_pdev->dev;
 
 	chan = dma_request_channel(mask, at_dma_filter, atslave);