Support Arduino Q (STM32U585 MCU part) #869
Description
Per https://docs.arduino.cc/tutorials/uno-q/user-manual/, the Arduino Q is a Linux single board computer that has a STM32U585AII6TR attached to it.
Arduino has forked a Zephyr-based Arduino core implementation to support the STM32U585:
https://github.com/arduino/ArduinoCore-zephyr
https://downloads.arduino.cc/packages/package_zephyr_index.json
Which uses its own arm-zephyr-eabi-gcc toolchain.
The uploader is a "remoteocd" program, so it needs the Linux part of the Arduino Q running to upload it via the network.
We need a new builder script, toolchain, framework package and some tools (zephyr-sketch-tool binary which can be easily rewritten to pure Python) to support it.