Katerra Inc., a construction manufacturing startup led by the former CEO of Flextronics, is reportedly looking for $200 million in new funding. The Menlo Park-based company disclosed in a regulatory filing last week that it raised about $28 million of a planned $30 million round. But Axios cited unnamed sources on Tuesday that said the actual goal is to raise about $200 million. Katerra raised $160 million last year, bringing the total raised up to $244 million and its valuation to about $2.5 billion,…