Angelina Jolie and Brad Pitt’s son, Maddox Jolie-Pitt, is set to formally change his surname.On Thursday, editors at TMZ reported that the 24-year-old had filed paperwork to legally drop “Pitt” from his name. According to the outlet, Maddox wants to be known as “Maddox Chivan Jolie” going forward. It’s unclear how long a ruling on the request will take. Angelina adopted Maddox from an orphanage in Cambodia when he was seven months old in March 2002, and three years later, also adopted daughter Zahara, 21, from Ethiopia. But when Angelina and Brad started a relationship, the F1 actor announced his intention to adopt her two children and filed paperwork to switch their surnames to “Jolie-Pitt”, which was granted in early 2006. The former couple also adopted son Pax Thien, 22, in 2007 and are parents to three biological children: Shiloh, 20, and 17-year-old twins, Knox and Vivienne. However, Angelina and Brad separated in 2016 after two years of marriage, with the Maleficent star citing “irreconcilable differences” in the divorce filing. They were each declared legally …