Update EIP-8080: Fix specification inconsistency in compute_exit_epoc…

[ralme1da]

Summary

Fixed inconsistency between the simplified modification description and the full implementation in the compute_exit_epoch_and_update_churn function.

Changes

• Updated the simplified modification (lines 35-41) to match the full implementation
• Added missing variable computations (activation_exit_epoch, adjusted epoch values)
• Clarified that the comparison uses adjusted epoch values, not raw state values
• Added "adjusted" qualifier in the description to emphasize this distinction

Rationale

The previous simplified description compared state.earliest_exit_epoch with state.earliest_consolidation_epoch, but the full implementation compares the adjusted local variables after applying max(). This could mislead implementers who only read the simplified description.

[eth-bot]

File EIPS/eip-8080.md

Requires 1 more reviewers from @fradamt