Mag calibration causing issues. #89

With the current behavior, first upon booting after flashing the mag is not identified, instead replaced with a "Not searching" status.

After a reboot, the mag becomes recognized

It does not try to automatically calibrate the mag like it did before.

When trying to calibrate the mag, the logs say it's clearing calibration and then the imu becomes unusable. It is recognized in serial, but the supermini blinks sensor error and does not move in slime vr. This is persistent no matter how many reboots, and requires re-flashing the firmware to become functional again.

This is consistent across different wirings and bootloaders on boards that were previously functional with the mag.