ASoC:RPI: DMA channels 2 and 3 to be set in FAST mode

Changing th DMA Channels 2 and 3 to be registered under
fast mode and not lite mode.Lite engine mode certainly
half the bandwidth of a normal DMA engine.

Signed-off-by: Manish Gupta <[email protected]>

Author: manish-wolfsonmicro

drivers/dma/bcm2708-dmaengine.c

@@ -859,7 +859,7 @@ static int bcm2835_dma_probe(struct platform_device *pdev)
 		void __iomem *chan_base;
 		int chan_id;
 
-		chan_id = bcm_dma_chan_alloc(BCM_DMA_FEATURE_LITE,
+		chan_id = bcm_dma_chan_alloc(BCM_DMA_FEATURE_FAST,
 			&chan_base,
 			&irq);