By Luc Cohen and Jody Godoy NEW YORK(Reuters) -Former Goldman Sachs banker Roger Ng was convicted by a U.S. jury on Friday of corruption charges related to his role in helping loot hundreds of millions of dollars from Malaysia’s 1MDB development fund. The charges stemmed from one of the biggest financial scandals in history. Prosecutors charged Ng, Goldman’s former top investment banker for Malaysia, for conspiring to violate an anti-corruption law and launder money. They said he helped his former boss Tim Leissner embezzle money from the fund, launder the proceeds and bribe officials to win b…