NAND: Part 2: Fix warning Please define CONFIG_SYS_64BIT_VSPRINTF...

Commit 8d2effea added a warning for configurations that use NAND
without defining the (then necessary) CONFIG_SYS_64BIT_VSPRINTF but
failed to fix the affected boards.

This patch covers the non-PPC boards that were missed in the previous
patch (commit 170c1972).

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/smdk6400.h b/include/configs/smdk6400.h
index 018f576..ddc8e71 100644
--- a/include/configs/smdk6400.h
+++ b/include/configs/smdk6400.h
@@ -269,6 +269,8 @@
 				 48, 49, 50, 51, 52, 53, 54, 55, \
 				 56, 57, 58, 59, 60, 61, 62, 63}
 
+#define CONFIG_SYS_64BIT_VSPRINTF		/* needed for nand_util.c */
+
 /* Boot configuration (define only one of next 3) */
 #define CONFIG_BOOT_NAND
 /* None of these are currently implemented. Left from the original Samsung