2.x - Timeout settings still hardcoded

[Dloranger]

UI timeout settings are still hardcoded to '300' when creating the svxlink.conf

https://github.com/OpenRepeater/openrepeater/blob/2.1.3/includes/classes/SVXLink.php#L178

Should be

'TIMEOUT' => ($this->settingsArray['repeaterTimeoutSec']),