By Brenna Hughes Neghaiwi ZURICH (Reuters) -UBS on Tuesday reported its best annual profit since the global financial crisis, emboldening it to hike share buybacks and set more ambitious profit goals as it banks that more digital products will result in hefty cost-savings. Shares in Switzerland’s biggest bank surged 6.5% in early trade to a four-year high. In its first major strategic review since Chief Executive Ralph Hamers took the helm in November 2020, UBS said it wants to use technology to help it increase revenues and reach more customers in the years ahead, while also continuing to bri…