LOS ANGELES – OWN: Oprah Winfrey Network has renewed its acclaimed original drama series, “Greenleaf,” from Lionsgate, award-winning writer/producer Craig Wright (“Lost,” “Six Feet Under”) and executive producers Clement Virgo (“The Book of Negros”) and Oprah Winfrey (“Selma”) for a third season. Additionally, Rick Fox, who portrays journalist Darius Nash, has been upped to a series regular for the new season. Previously announced, the second half of …