imx:mx6 add mx6sx in imx spl header file

Since mx6sx's memory space is different to mx6dq, redefine the SPL
related macro for mx6sx chip.

Signed-off-by: Peng Fan <Peng.Fan@freescale.com>

include/configs/imx6_spl.h

@@ -61,11 +61,19 @@
 #define CONFIG_SPL_LIBDISK_SUPPORT
 #endif
 
+#if defined(CONFIG_MX6SX)
+#define CONFIG_SPL_BSS_START_ADDR      0x88200000
+#define CONFIG_SPL_BSS_MAX_SIZE        0x100000        /* 1 MB */
+#define CONFIG_SYS_SPL_MALLOC_START    0x88300000
+#define CONFIG_SYS_SPL_MALLOC_SIZE     0x3200000       /* 50 MB */
+#define CONFIG_SYS_TEXT_BASE           0x87800000
+#else
 #define CONFIG_SPL_BSS_START_ADDR	0x18200000
 #define CONFIG_SPL_BSS_MAX_SIZE		0x100000	/* 1 MB */
 #define CONFIG_SYS_SPL_MALLOC_START	0x18300000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x3200000	/* 50 MB */
 #define CONFIG_SYS_TEXT_BASE		0x17800000
 #endif
+#endif
 
 #endif