Add temporary reverts to code paths using a custom gas token (OPCM - Upgrade 13)

[maurelian]

Context:

The L1 contracts currently contain code that supports a custom gas token implementation, however the standard L2 genesis project (#12302) is still required to support CGT properly.

We do not wish to release this dead code without protections.

Spec:

A new PR is requested which should:

1. Cause CGT code paths to revert if the token is not ETH.
2. Ideally prevent the system from being deploy if the token is not ETH.

My intuition is that the affected contracts should be limited to the SystemConfig and OptimismPortal.

[mds1]

My intuition is that the affected contracts should be limited to the SystemConfig and OptimismPortal.

I believe this is correct. But this is the PR where the CGT functionality was merged: #10143. @AmadiMichael, you can take a look at the L1 contracts diff there to make sure we don't miss any L1 changes.

[AmadiMichael]

On it 🫡

[maurelian]

I was wrong. The diff will also include the L1StandardBridge and L1CrossDomainMessenger.