cm-t35: fix incorrect NAND_ECC layout selection

The current configuration selects an incorrect NAND ECC layout,
which causes u-boot to write HW ECC data incorrectly.
This patch selects the right layout.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>

include/configs/cm_t35.h

@@ -174,7 +174,7 @@
 #define CONFIG_SYS_NAND_BASE		NAND_BASE	/* physical address */
 							/* to access nand at */
 							/* CS0 */
-#define GPMC_NAND_ECC_LP_x16_LAYOUT
+#define GPMC_NAND_ECC_LP_x8_LAYOUT
 
 #define CONFIG_SYS_MAX_NAND_DEVICE	1		/* Max number of NAND */
 							/* devices */