Update wc-ecfb.php

1 - Correção linha "274" - (If checked show the Person Type option and CPF, Company and CNJP fields in billing options) para (If checked show the Person Type option and CPF, Company and CNPJ fields in billing options)
1 - Correction line "274" - (If checked show the Person Type option and CPF, Company and CNJP fields in billing options) for (If checked show the Person Type option and CPF, Company and CNPJ fields in billing options)