Add missing virtual ASoC DMA device.
Signed-off-by: NJassi Brar <jassi.brar@samsung.com>
Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
[kgene.kim@samsung.com: minor changed title]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>