By Inti Landauro MADRID (Reuters) -Telefonica plans to set up a separate unit to handle the expansion of its fibre network into scarcely populated areas in Spain with outside investors, its Chief Operating Officer Angel Vila told reporters on Thursday. Telefonica already has some 2.5 million homes connected with fibre in rural, semi-rural and distant suburb towns with fewer than 20,000 inhabitants and will seek to add 2 million more, he said. The expansion plan will also rely on planned EU-backed government subsidies. “We have started contacts with investors and the project is designed and we …