[PATCH] MTD build fix

From: Adrian Bunk <bunk@fs.tum.de>

Fix this:

drivers/mtd/maps/map_funcs.c: In function `simple_map_read64':
drivers/mtd/maps/map_funcs.c:38: warning: implicit declaration of
function `__raw_readll'

drivers/mtd/maps/map_funcs.c

@@ -13,6 +13,7 @@
 #include <asm/io.h>
 
 #include <linux/mtd/map.h>
+#include <linux/mtd/cfi.h>
 
 static u8 simple_map_read8(struct map_info *map, unsigned long ofs)
 {