An analyst poured cold water on the company's positive recent earnings report.Shares of Marvell Technology (MRVL 7.03%) fell as much as 10.1% on Monday, before recovering to a 7.5% decline as of 12:46 p.m. EDT.The company reported better-than-expected third-quarter earnings last week, leading to a rise; however, one analyst threw cold water on the recent jump today, raising the perennial question of whether Marvell has lost a custom XPU contract for Amazon's (AMZN 1.11%) next-gen Trainium chips.NASDAQ : MRV ...