EV stocks went about in a listless manner in the week ended Oct. 1 before ending narrowly mixed. Broader market volatility and company-specific announcements served as catalysts for stock moves. Here are the week's key headlines related to EV stocks: Tesla's Giga Berlin, Norway Sales, Looming Supply Shock After a protracted delay, Tesla, Inc. (NASDAQ: TSLA )'s Berlin Gigafactory could finally secure approval to operate. Final construction permit for the factory could be coming in 2021, Brandenburg Prime Minister Dietmar Woidke reportedly said. Tesla's Norway sales continue to sizzle, with the EV giant taking an approximately 40% share of the…