Copter/AHRS: CTUN.Crt should match -XKF1.VD

Bug Report

As reported in this discussion, the CTUN.Crt log field does not match the -XKF1.VD value when vibration compensation is on but it probably should.

Version 4.7 (and higher)

Platform [ ] All [ ] AntennaTracker [x] Copter [ ] Plane [ ] Rover [ ] Submarine

Logs

Logs can be found in the linked discussion