Apple has updated its Apple TV Events app with a listing for its September 12 event — the first to be held at the new Steve Jobs Theater. As previously reported, at 10 a.m. Pacific time that day Apple is expected to reveal its new iPhones — including the tenth-anniversary iPhone 8/Edition — alongside a new 4K Apple TV and a cellular-capable Apple Watch. Apple TV owners will be able to stream the event through the Events app, and as always…