sn32: eeprom updates

[dexter93]

Requires

• SN32: implement EFL LLD for flash access ChibiOS/ChibiOS-Contrib#385
• [wear_leveling] efl updates qmk/qmk_firmware#22489

Usage:
EEPROM_DRIVER = wear_leveling
WEAR_LEVELING_DRIVER= embedded_flash

Description

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).