PARIS, March 2 (Reuters) - Danone’s shares edged up on Tuesday after the French food group separated the chairman and chief executive roles held by Emmanuel Faber, and launched the search for a new CEO following calls from several shareholders to shake up governance. Danone shares were up 0.5% in early session trading. Late on Monday, Danone said Faber would remain in the dual Chairman/CEO position until a new CEO was found, and that he would then become non-executive chairman. (Reporting by Sarah White, Gwenaelle Barzic, Sudip Kar-Gupta; editing by Louise Heavens)