OnePlus is reportedly gearing up to launch its first foldable smartphone sometime soon. In a new update, OnePlus co-founder Pete Lau shared pictures of a hinge on Twitter on Friday to offer hints about the development of a foldable smartphone without confirming the name and other details. Samsung currently has an early lead in the foldable smartphone category. Xiaomi recently introduced Xiaomi Mix Fold 2. Moto Razr 2022 has also arrived in…