imx31_litekit: Remove dram_init_banksize()

As only one RAM bank is used we can rely on the code from arch/arm/lib/board.c

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/include/configs/imx31_litekit.h b/include/configs/imx31_litekit.h
index b7f1cb3..2a02b3d 100644
--- a/include/configs/imx31_litekit.h
+++ b/include/configs/imx31_litekit.h
@@ -150,7 +150,7 @@
 #define PHYS_SDRAM_1_SIZE	(128 * 1024 * 1024)
 #define CONFIG_BOARD_EARLY_INIT_F
 
-#define CONFIG_SYS_SDRAM_BASE		CSD0_BASE
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
 #define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
 #define CONFIG_SYS_INIT_RAM_SIZE		IRAM_SIZE
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)