imx:mx6sxsabresd: change CONFIG_SYS_FSL_ESDHC_ADDR

Define CONFIG_SYS_FSL_ESDHC_ADDR using USDHC4_BASE_ADDR which is used
in board_mmc_init.

If board_mmc_init failed, cpu_mmc_init->fsl_esdhc_mmc_init will use
CONFIG_SYS_FSL_ESDHC_ADDR to initialize sdhc. So set this macro to
correct value.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
diff --git a/include/configs/mx6sxsabresd.h b/include/configs/mx6sxsabresd.h
index b92d944..fd74c69 100644
--- a/include/configs/mx6sxsabresd.h
+++ b/include/configs/mx6sxsabresd.h
@@ -159,7 +159,7 @@
 /* MMC Configuration */
 #define CONFIG_FSL_ESDHC
 #define CONFIG_FSL_USDHC
-#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC4_BASE_ADDR
 
 #define CONFIG_MMC
 #define CONFIG_CMD_MMC