Intel is in early-stage talks to add AMD as a customer at Intel’s factories, in what would be another vote of confidence in the struggling chipmaker, according to people familiar with the matter.In the past seven weeks, Intel has gained investment dollars and public support from the White House, Nvidia, and SoftBank, and is in talks for backing from Apple, Semafor and others have reported. AMD designs chips that are currently produced mostly by Taiwan’s TSMC, and Intel currently lacks the techno...