drivers/input:fix circbuf leak

Signed-off-by: liuhongchao <liuhongchao@xiaomi.com>

drivers/input/keyboard_upper.c

@@ -139,6 +139,7 @@ static int keyboard_open(FAR struct file *filep)
       ret = upper->lower->open(upper->lower);
       if (ret < 0)
         {
+          circbuf_uninit(&opriv->circ);
           kmm_free(opriv);
           nxmutex_unlock(&upper->lock);
           return ret;