Arm Ethos-U65/85 NPUs get open-source Linux driver

The Arm Ethos-U65/85 NPUs for edge AI inference applications now have a Linux kernel driver that works with Mesa Teflon. It’s been tested with i.MX 93 boards with Ethos-U65. Ethos-U85 support is coming soon, and only requires minor changes. See the commit message for details and links to code.