June 13 (Reuters) – Honda Motor Co Ltd said on Wednesday it will recall about 50000 Civic small cars in the United States from the 2012 model year for a potential driveshaft assembly issue that could lead to loss of engine power. The Japanese automaker said it will inspect and, if needed, replace the driver's side driveshaft that may not have been properly assembled, which could lead to the engine no longer propelling the vehicle in any gear. The car also could roll …