kaustinen: genesis-time verkle transition is broken

[gballet]

This is something that is most definitely also broken in the rebased beverly hills. This is an analysis of the bug, it will not be fixed for now as kaustinen will do the transition on block 1 anyway.

The code has been changed so that SetupGenesisBlockWithOverride will try to load the genesis from the db. If it finds one, it will check for its state, no longer using state.New but a MPT-specific function called HasLegacyNode: https://github.com/gballet/go-ethereum/blob/kaustinen-with-shapella/core/genesis.go#L345

If this function returns false (and it will as the verkle root at genesis is not a legacy node since it uses its own storage format, it will override the genesis to be DefaultGenesisBlock.

As a result, it will complain that the genesis hashes differ.

This will not be fixed before we use the state provider, as it would take a lot of time and will be obsolete soon.

[gballet]

Fixed in #283, #284 , #285