(Reuters) -British high-end homebuilder Berkeley on Friday joined its sector peers in underscoring the difficult trading conditions in the housing market, as high mortgage costs and weak macroeconomic backdrop continue to drive buyers away. Britain’s housing market has battled a pronounced slowdown for most of this year as expensive home loans and broader economic woes weigh on affordability, forcing builders to warn on profit and cut down on home-build targets. “We anticipate the sales market will remain subdued before inflecting in its normal cyclical manner once there is greater confidence …