arm: rmobile: koelsch: Add support SDHI

Koelsch board has three SDHI port.
This adds GPIO configuration and initialization function of SDHI, and
enables MMC command.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/koelsch.h b/include/configs/koelsch.h
index f7c7b2a..1dffab1 100644
--- a/include/configs/koelsch.h
+++ b/include/configs/koelsch.h
@@ -89,7 +89,6 @@
 #define CONFIG_USB_MAX_CONTROLLER_COUNT	2
 #define CONFIG_USB_STORAGE
 
-
 /* Module stop status bits */
 /* INTC-RT */
 #define CONFIG_SMSTP0_ENA	0x00400000
@@ -100,4 +99,10 @@
 /* SCIF0 */
 #define CONFIG_SMSTP7_ENA	0x00200000
 
+/* SD */
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_SH_SDHI_FREQ	97500000
+
 #endif	/* __KOELSCH_H */