Now we use never_reset which is generally more correct and easier to get right. Fixes #5001 and fixes #4997
This no longer turns on status LED power before running user code. Therefore, use of the status LED on some boards will also have to enable the power.
This is compile-tested, and requires updates in the related submodules: https://github.com/adafruit/samd-peripherals/pull/35 https://github.com/adafruit/asf4/pull/37 This should not be merged until those can also be merged.