Are the knives are out at Nokia or are executives voluntarily jumping off the cliff? Either way, Nokia Charman Jorma Ollila is the latest to tell the board that he will serve until the company's 2012 annual general meeting. The news comes less than a week after CEO Olli-Pekka Kallasvuo announced he would step down on Sept. 21 in favor of former Microsoftie Stephen Elop. Anssi Vanjoki, head of mobile solutions only said he was off