Move fake EE_HANDS from EEPROM init.

[daskygit]

Description

Moves and adds some logic so fake EE_HANDS no longer requires a EEPROM init.

Triggering a EEPROM init can be a pain with split keyboards that make use of _RIGHT defines for the matrix. This also emulates AVR better when flashing with left/right bootloader targets.

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).