ARM: exynos_defconfig: Enable AHCI-platform SATA driver

Exynos5250-based Arndale board has one eSATA port, so enable AHCI-platform
driver, which handles it.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

arch/arm/configs/exynos_defconfig

@@ -92,9 +92,12 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_CRYPTOLOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_SG=y
+CONFIG_ATA=y
+# CONFIG_SATA_PMP is not set
+CONFIG_SATA_AHCI_PLATFORM=y
+# CONFIG_ATA_SFF is not set
 CONFIG_MD=y
 CONFIG_BLK_DEV_DM=y
 CONFIG_DM_CRYPT=m