fix parsing getsyscoindata witness
fix parsing getsyscoindata witness


Former-commit-id: 0d99a1c89c1cc62550e122e61702b93aeb0b1d3c
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin