handle portname change on reset
handle portname change on reset


Former-commit-id: b883ed07cff79d9188ee687f31f645187439ebef [formerly 28e795624510daf696ac7fa286458130153d8658]
Former-commit-id: ab015547afe5f7d993f8ccf3d5ba007176004de6
arduino/arduino-create-agent,arduino/arduino-create-agent,arduino/arduino-create-agent,arduino/arduino-create-agent