(Reuters) - London's stock markets suffered sharp losses on Wednesday, as banking shares dived after suspending dividend payments, while plunging factory activity across Asia underlined the economic hit from the coronavirus pandemic.Shares of Barclays , HSBC , Lloyds Banking Group , Royal Bank of Scotland and Standard Chartered dropped between 3% and 7%, dragging down the blue-chip FTSE 100 by 3.2%.The lenders said on Tuesday they would suspend dividend payments, bowing to pressure from the..