ASoC: Fix burstsize and DSP_B format problems in imx-ssi.

When choosing IMX_DMA flag, burtsizes are set to its default
value (0) which leads to driver malfunction. Change them to 4.

DSP_B interface needs additional flag to match DSP_B formats
as described in several codecs as wm8741 and aic3205.

Signed-off-by: Javier Martin <[e-mail]>
Acked-by: Liam Girdwood <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/imx/imx-ssi.c

···
 		break;
 	case SND_SOC_DAIFMT_DSP_B:
 		/* data on rising edge of bclk, frame high with data */
-		strcr |= SSI_STCR_TFSL;
+		strcr |= SSI_STCR_TFSL | SSI_STCR_TXBIT0;
 		break;
 	case SND_SOC_DAIFMT_DSP_A:
 		/* data on rising edge of bclk, frame high 1clk before data */
···
 
 	ssi->dma_params_rx.dma_addr = res->start + SSI_SRX0;
 	ssi->dma_params_tx.dma_addr = res->start + SSI_STX0;
+
+	ssi->dma_params_tx.burstsize = 4;
+	ssi->dma_params_rx.burstsize = 4;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0");
 	if (res)