gpio: 添加usb引脚测试

Change-Id: Ia84a561e79bd1c12dbe3fa50306335f34c1e421a
diff --git a/mbtk/mbtk_lib/src/mbtk_gpio.c b/mbtk/mbtk_lib/src/mbtk_gpio.c
index a23ea6f..65d6bb5 100755
--- a/mbtk/mbtk_lib/src/mbtk_gpio.c
+++ b/mbtk/mbtk_lib/src/mbtk_gpio.c
@@ -533,7 +533,7 @@
      49, 50, 27, 28, 26, 25, 16, 17, 15, 126, 125,
       4,  0, 3, 18, 7, 6, 1, 2, /*54,*/ 19, 13,
      32, 31, 23, 24, 22, /*122,*/ 33, 35, 36, 34, 14,
-     /*99,*//* 53,*/ 37, 38, 39, 40, 41, 42};
+     99,/* 53,*/ 37, 38, 39, 40, 41, 42};
 
     int i, j, ret, total, n = 0;
     int *fail_io = (int *)arg;