Bugfix 12468 2

[*] The help of the token_update command has been corrected, it is indicated that instead of the flags parameter the command accepts flag_set, flag_unset. The creation of TSD sections for token updates has also been fixed.

[*] An argument has been added to the dap_chain_datum_token_flags_dump_to_json function indicating the name of the key for the JSON object being created.