2022 has not been kind to SoftBank CEO Masayoshi Son. He’s calling it a “technology winter.” And the numbers are certainly chilling for Son. SoftBank’s Vision Fund lost 2.64 trillion yen ($20.5 billion) for the year ending March 31.  The previous year, it had made a profit. The same holdings that drove that profit are now punishing SoftBank’s bottom line. Shares for South Korean e-commerce giant Coupang dropped 60% in the first quarter. Chinese ride-hailing pioneer…