linux-phytec-ti

ASoC: rockchip-i2s: fix rockchip i2s defination more reasonable

Fix SND_ROCKCHIP_I2S to be more reasonable - SND_SOC_ROCKCHIP_I2S,
SND_SOC_ROCKCHIP_I2S should select by audio driver, instead of
SND_SOC_ROCKCHIP.

Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>