BERLIN/SEOUL (Reuters) -German authorities have raided Hyundai and Kia over allegations that they put over 210,000 diesel vehicles with suspected illegal defeat devices onto the road, the Frankfurt state prosecutor’s office said on Tuesday. The announcement sent shares of the two South Korean automakers down more than 6% on Wednesday, as investors fear it may lead to an expansion of the investigation and punitive damages. Defeat devices are mechanisms or software that can change vehicle emissions levels, leading to disputes over whether manufacturers use them to mask the true pollution levels …