By Brian Ellsworth and Don Burgess (Reuters) – A London tribunal on Monday ruled that a 2018 Bermuda law that bans same-sex marriage in the British overseas territory is constitutional, a departure from the broad trend towards legalisation of gay marriage in the West. Bermuda’s top court in 2018 ruled that the 2018 Domestic Partnership Act, which allows same-sex couples to form partnerships but prohibits them from marrying, violates constitutional freedom of conscience. London’s Privy Council, the highest court of appeal for British territories, ruled on Monday that the constitution does not i…