IMX/DMA : set the DMA direction in the sdma_control()

Set the right DMA direction in the sdma_control(), else
we will get the wrong log when enable the DYNAMIC_DEBUG.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 2e03571..d9e5933 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1102,6 +1102,7 @@
 			sdmac->watermark_level = dmaengine_cfg->dst_maxburst;
 			sdmac->word_size = dmaengine_cfg->dst_addr_width;
 		}
+		sdmac->direction = dmaengine_cfg->direction;
 		return sdma_config_channel(sdmac);
 	default:
 		return -ENOSYS;