esp32: fix the bug that the first two reboots do full calibration
esp32: fix the bug that the first two reboots do full calibration

If the NVS is erased, the first two reboots will do full calibration.
This commit is to fix this issue and only need to do full calibration once.

www220/esp-idf,mashaoze/esp-idf,armada-ai/esp-idf,mashaoze/esp-idf,mashaoze/esp-idf,mashaoze/esp-idf,www220/esp-idf,espressif/esp-idf,www220/esp-idf,armada-ai/esp-idf,armada-ai/esp-idf,armada-ai/esp-idf,www220/esp-idf,espressif/esp-idf,espressif/esp-idf,mashaoze/esp-idf,espressif/esp-idf,www220/esp-idf