Array out-of-bound access in TxCore in combination with Fei4TriggerLoop

void Fei4TriggerLoop::setTrigDelay(unsigned int delay) sets m_trigWordLength = 32 + delay;, but m_trigWord is an array uint32_t[4]. Therefore, TxCore::setTrigWord will do an out-of-bound access to trigWord buffer. All FE-I4 related scans currently fail! m_trigWordLength should be kept at 4 in all cases!