fix CreateAssetUpdateTx for assettransfer
fix CreateAssetUpdateTx for assettransfer


Former-commit-id: ebf62822b118cb62cb9c3757de69ab7257d9174a
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin