[2.0.x] PersistentStore update followup (#11549)

Marlin/src/HAL/HAL_AVR/persistent_store_impl.cpp

Marlin/src/HAL/HAL_DUE/Servo_Due.cpp

Marlin/src/HAL/HAL_DUE/persistent_store_eeprom.cpp

Marlin/src/HAL/HAL_DUE/persistent_store_impl.cpp

Marlin/src/HAL/HAL_LPC1768/persistent_store_flash.cpp

Marlin/src/HAL/HAL_LPC1768/persistent_store_sdcard.cpp

Marlin/src/HAL/platforms.h

Marlin/src/HAL/shared/I2cEeprom.cpp

Marlin/src/HAL/shared/SpiEeprom.cpp

Marlin/src/HAL/shared/persistent_store_api.cpp

Marlin/src/inc/MarlinConfigPre.h

buildroot/share/tests/DUE_tests

buildroot/share/tests/LPC1768_tests