ASoC: omap-pcm, omap-dmic: Change the use of omap_pcm_dma_data->data_type

Instead of the OMAP DMA data type definition the data_type will be used to
specify the number of bits the DMA word should be configured or 0 in case
when based on the stream's format the omap-pcm can decide the needed DMA
word size.
This feature is needed for the omap-hdmi where the sDMA need to be
configured for 32bit word type regardless of the audio format used.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/omap/omap-pcm.c

@@ -183,7 +183,8 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
 	memset(&dma_params, 0, sizeof(dma_params));
 
 	if (dma_data->data_type)
-		dma_params.data_type = dma_data->data_type;
+		dma_params.data_type = omap_pcm_get_dma_type(
+				dma_data->data_type);
 	else
 		dma_params.data_type = omap_pcm_get_dma_type(
 				snd_pcm_format_physical_width(runtime->format));