In late September, Reuters reported that China was preparing an antitrust case against Alphabet Inc., the parent company of Google, over its Android operating system, which has gained a dominant position in China’s mobile phone market. The government’s investigation, the report said, came at the suggestion of Huawei, the country’s giant telecom firm.   That should tell you everything you need to know. Huawei is suffering under a sustained U.S. effort aimed at restricting the f