As far as I understand
option “02” is only being used to install packaged on OS level.
To install EEPROM update more is required.
Option 02 first installs the updated EEPROM package ( rpi-eeprom ) which contains the bootloader ( ls -lt /lib/firmware/raspberrypi/bootloader/stable/ ).
To finally install the bootloader into the EEPROM there are different ways to achieve this:
These different ways are explained in this article: Updating the Bootloader on a Raspberry Pi - Pi My Life Up.
raspi-config is not available in openhabian distribution as other functionality of raspi-config is built into openhabian-config. Updating the EEPROM seems not to be build into openhabian-config ( at least I was not able to find it in openhabian-config ).