powerpc/B4860QDS: Define new nand_ecclayout structure macros

Define CONFIG_SYS_NAND_MAX_ECCPOS and CONFIG_SYS_NAND_MAX_OOBFREE to
reduce the image size, by taking advantage of the new nand_ecclayout
structure.

Signed-off-by: York Sun <yorksun@freescale.com>
CC: Prabhakar Kushwaha <prabhakar@freescale.com>
CC: Scott Wood <scottwood@freescale.com>

include/configs/B4860QDS.h

@@ -289,6 +289,8 @@ unsigned long get_board_ddr_clk(void);
 
 /* NAND Flash on IFC */
 #define CONFIG_NAND_FSL_IFC
+#define CONFIG_SYS_NAND_MAX_ECCPOS	256
+#define CONFIG_SYS_NAND_MAX_OOBFREE	2
 #define CONFIG_SYS_NAND_BASE		0xff800000
 #ifdef CONFIG_PHYS_64BIT
 #define CONFIG_SYS_NAND_BASE_PHYS	(0xf00000000ull | CONFIG_SYS_NAND_BASE)