(Reuters) - Tesla Inc said board member Robyn Denholm will replace Elon Musk as its chair, more than a month after the billionaire had to step down as the electric-car maker's chairman as part of a settlement with U.S. regulators.Tesla had until Nov. 13 to name an independent board chairman under the settlement with the U.S. Securities and Exchange Commission, which said Musk's tweets about taking the company private were fraudulent and that the billionaire could retain his role as CEO but..