ASoC: follow the updated samsung DMA common operations

This patch uses config() function to configure DMA
transmit options.

Signed-off-by: Boojin Kim <boojin.kim@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>