By Sarah Marsh BERLIN (Reuters) – German Chancellor Olaf Scholz’s faced the prospect of a more divided government after one of his coalition partners vowed to assert itself more strongly following a drubbing in a state election. Scholz had little time to rejoice over his Social Democrats (SPD) winning the vote in the state of Lower Saxony on Sunday given the poor performance of the Free Democrats (FDP), who failed to reach the 5% threshold to enter parliament. The pro-business, fiscally-hawish FDP, which has suffered a series of poor results in state elections this year, blamed in part its par…