TOKYO (Reuters) -China’s envoy to Japan, Kong Xuanyou, on Thursday said the upcoming Beijing Winter Olympics had been unfortunately “used as a political tool,” and asked for Japan’s support, while also warning Tokyo not to interfere on Taiwan. Kong’s speech came as members of Japanese Prime Minister Fumio Kishida’s Liberal Democratic Party (LPD) call for a diplomatic boycott of the Beijing Games in February. The United States and other nations have announced a diplomatic boycott of the Beijing Olympics due to what they say are human rights abuses in Hong Kong and China’s Xinjiang region, but J…