Fix bug with FIO_IO_U_M/U_NR being transposed

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/fio.h b/fio.h
index 813e55b..d84eecf 100644
--- a/fio.h
+++ b/fio.h
@@ -295,8 +295,8 @@
  * How many depth levels to log
  */
 #define FIO_IO_U_MAP_NR	8
-#define FIO_IO_U_LAT_U_NR 12
-#define FIO_IO_U_LAT_M_NR 10
+#define FIO_IO_U_LAT_U_NR 10
+#define FIO_IO_U_LAT_M_NR 12
 
 struct thread_stat {
 	char *name;