eip-7702: move the lighter check up

EIPS/eip-7702.md

@@ -63,8 +63,8 @@ The [EIP-2718](./eip-2718.md) `ReceiptPayload` for this transaction is `rlp([sta
 
 At the start of executing the transaction, after incrementing the sender's nonce, for each `[chain_id, address, nonce, y_parity, r, s]` tuple do the following:
 
-1. `authority = ecrecover(keccak(MAGIC || rlp([chain_id, address, nonce])), y_parity, r, s]`
-2. Verify the chain id is either 0 or the chain's current ID.
+1. Verify the chain id is either 0 or the chain's current ID.
+2. `authority = ecrecover(keccak(MAGIC || rlp([chain_id, address, nonce])), y_parity, r, s]`
 3. Add `authority` to `accessed_addresses` (as defined in [EIP-2929](./eip-2929.md).)
 4. Verify the code of `authority` is either empty or already delegated.
 5. Verify the nonce of `authority` is equal to `nonce`.