By Sam Nussey TOKYO (Reuters) -Nintendo on Tuesday hiked its sales forecast for the Switch 2 gaming device to 19 million units for the financial year ending March 2026 from 15 million units previously. The Kyoto-based gaming company also raised its full-year operating profit forecast by 16% to 370 billion yen ($2.45 billion). Investors have been weighing the likely strength of sales momentum for the hybrid home-portable gaming device since its launch in June. The successor to the hit home-portable Swit ...