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/at91cap9adk.h b/include/configs/at91cap9adk.h
index 219eea3..df73661 100644
--- a/include/configs/at91cap9adk.h
+++ b/include/configs/at91cap9adk.h
@@ -130,6 +130,8 @@
 #define CONFIG_SYS_MAX_NAND_DEVICE		1
 #define CONFIG_SYS_NAND_BASE			0x40000000
 #define CONFIG_SYS_NAND_DBW_8			1
+
+#define CONFIG_SYS_64BIT_VSPRINTF		/* needed for nand_util.c */
 #endif
 
 /* Ethernet */