* uavcan esc: remove unused includes
* uavcan arming_status: disarm when terminated
To stay consistent with kill.
* uavcan: publish armed during actuator tests to make it possible spinning motors
- ArmingStatus DroneCAN message STATUS field is only set to true based on
arming_status.armed
- Cannode prearm state is set to true always when ArmingStatus DroneCan
message is received