[Fix] hokulea Hinting system

[bxue-l2]

Currently hokulea is using a hinting system slightly different from OP spec https://specs.optimism.io/fault-proof/index.html#pre-image-communication

• the response side follows the OP spec, because kona is handling it
• the send side does not include the message length.

Although it does not affect security, it is good if we follow OP spec.

Add Hint spec when this is addressed.

[bxue-l2]

https://github.com/Layr-Labs/hokulea/tree/master/docs#reserved-addresses-for-da-certificates