Boeing Co. has agreed to sell planes to an Iranian airline for the first time since U.S. President Donald Trump, a critic of closer ties with Tehran, took office. Boeing said it had signed a memorandum of agreement with Iran Aseman Airlines for the potential sale of up to 60 Boeing 737 Max single-aisle planes. Plane deliveries would begin in 2022, the company said Tuesday. The transaction, which still needs to be…