FILE PHOTO: The AT&T logo is pictured during the Forbes Forum 2017 in Mexico City, Mexico, September 18, 2017. REUTERS/Edgard Garrido/File PhotoMEXICO CITY (Reuters) – Mexico’s consumer watchdog, Profeco, said on Friday it won a class-action lawsuit against the local unit of U.S. telecommunications giant AT&T Inc for undue charges and poor service. The sentence is final after Mexico’s Supreme …