[EVM] Change direct call hash calculation

[sideninja]

Direct call custom hash calculation causes issues when the call is converted into a geth transaction.

The direct call hash is included in the block as transaction hashes, which means that any client would expect to be able to fetch that transaction and then recalculate the same hash, but since the direct call has a custom hash calculation the transaction calculated hash would differ.

We have to make sure that any client that can fetch the direct call as a transaction would match the hash that was calculated and included in the block.