LISBON (Reuters) - It's good news that Angola's Isabel dos Santos has decided to sell her investments in Portuguese companies, Portugal's Economy Minister Pedro Siza Vieira told Reuters, saying that would avoid any potential damage to them as she battles fraud charges.The billionaire, whose father Jose Eduardo dos Santos was Angola's president for 38 years until 2017, last month was named by the country as a suspect over alleged mismanagement and misappropriation of funds while she was..