By Herbert Lash and Bansari Mayur Kamdar (Reuters) -U.S. stock indexes were mixed on Monday after blockbuster jobs data last week reinforced expectations the Federal Reserve will crack down on inflation, while a revenue warning from chipmaker Nvidia was another reminder of a slowing U.S. economy. Stocks edged off the day’s highs as last week’s blowout labor market report was initially seen as a sign the economy could withstand aggressive interest rate hikes by the Fed to tame inflation running at four-decade highs. Investors now await consumer price data for July to be released on Wednesday to…