A group of 10 banks is providing a $22 billion chip loan to support Blackstone Inc. and Alphabet Inc.’s new cloud venture Crux AI, the latest mega-debt deal in the race to finance the expensive processors crucial to artificial intelligence.The debt will be used to purchase tensor processing units, or TPUs, a type of chip made by Google, and will be backed by the value of those chips and Crux AI’s customer contracts, according to people with knowledge of the matter....