Response parsing bug

In line 113 ~ 115 of the `SSLWireless` class, if condition checking should be like
```php
if ($array['LOGIN'] != "SUCCESSFULL") {
    throw new \Exception("API Authentication failed!");
}
```

For the current checking, SMS is sent successfully; but building response is now erroneous.

@shahariaazam brother, please check that piece of code ASAP.