spi: s3c64xx: Do not require legacy DMA API in case of S3C64XX

With support for amba-pl08x driver, on S3C64xx the generic DMA engine
API can be used instead of the private s3c-dma interface.
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/spi/Kconfig

@@ -395,7 +395,7 @@ config SPI_S3C24XX_FIQ
 config SPI_S3C64XX
 	tristate "Samsung S3C64XX series type SPI"
 	depends on PLAT_SAMSUNG
-	select S3C64XX_DMA if ARCH_S3C64XX
+	select S3C64XX_DMA if ARCH_S3C64XX && !S3C64XX_PL080
 	help
 	  SPI driver for Samsung S3C64XX and newer SoCs.