TOKYO (Reuters) - Asian shares steadied on Wednesday, after a two days of gains, as investors refocused on the risk of a U.S. fiscal crisis following Federal Reserve Chairman Ben Bernanke's remarks that the budget impasse was already damaging growth. U.S. stocks halted a two-day rally on Tuesday, while European shares edged higher on expectations euro zone finance ministers will approve the next tranche of bailout cash for Greece. MSCI's broadest index of Asia-Pacific shares outside Japan was little changed, with Australian shares easing 0.1 percent and South Korean shares opening up 0. ...