ASoC: jz4740: Use the generic dmaengine PCM driver

Now that there is a dmaengine driver for the jz4740 DMA core we can use the
generic dmaengine PCM driver. This allows us to remove the custom jz4740-pcm
code completely.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --cc sound/soc/jz4740/Kconfig
Simple merge

diff --cc sound/soc/jz4740/jz4740-i2s.c
Simple merge

diff --cc sound/soc/jz4740/jz4740-pcm.c
Simple merge

diff --cc sound/soc/jz4740/jz4740-pcm.h
Simple merge

diff --cc sound/soc/jz4740/qi_lb60.c
Simple merge