Since CONFIG_PLAT_S3C64XX is going to be removed, this patch modifies
the s3c-i2s-v2 driver to use the proper way of checking for S3C64xx
support - CONFIG_ARCH_S3C64XX.
Signed-off-by: NTomasz Figa <tomasz.figa@gmail.com>
Acked-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>