AT&T Inc’s (T.N) proposed $48.5 billion acquisition of DirecTV (DTV.O) is expected to get U.S. regulatory approval as soon as next week, according to people familiar with the matter, a decision that will combine the country’s No. 2 wireless carrier with the largest satellite-TV provider. The Department of Justice, which assesses whether deals violate antitrust law, has completed its review of the merger and is waiting on the Federal Communications Commission to wrap up its own, according to three people familiar with the matter.