Move GpuMat initialization to a more suitable scope.#4060

asmorkalov merged 1 commit intoopencv:4.xopencv/opencv_contrib:4.xfrom

cabranca:fix-use-of-uninitialized-buffer-stride-variablecabranca/opencv_contrib:fix-use-of-uninitialized-buffer-stride-variableCopy head branch name to clipboard