KEY TAKEAWAYSApple is suffering in China as local rivals overtake it, three new reports by research firms monitoring shipments in the world's largest smartphones market showed.Apple’s China iPhone shipments fell 3.1% year-over-year in the second quarter while overall Android phone sales rose 11.1%, according to preliminary data from IDC.The top five China smartphone vendors are entirely domestic for the first time, Canalys said. Apple (AAPL) is suffering in China as local rivals overtake it, three new repor ...