fat: i_blocks warning fix

blkcnt_t type depends on CONFIG_LSF. Use unsigned long long always for
printk().  But lazy to type it, so add "llu" and use it.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 4efc503..ea440d6 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -323,4 +323,7 @@
 int fat_cache_init(void);
 void fat_cache_destroy(void);
 
+/* helper for printk */
+typedef unsigned long long	llu;
+
 #endif /* !_FAT_H */