Truncate error shouldn't be allowed when handling default values

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

```
set sql_mode='';
create table t (d int default '123121241241242515521525215525' );
```

### 2. What did you expect to see? (Required)

```
ERROR 1067 (42000): Invalid default value for 'd'
```

### 3. What did you see instead (Required)

```
Query OK, 0 rows affected, 1 warning (0.32 sec)

```

### 4. What is your TiDB version? (Required)