Increase epsilon for OpenCL version UMatDot and ReduceAvg accurency tests
Increase epsilon for OpenCL version UMatDot and ReduceAvg accurency tests

apavlenko/opencv,opencv/opencv,apavlenko/opencv,opencv/opencv,apavlenko/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv,apavlenko/opencv,apavlenko/opencv,opencv/opencv,opencv/opencv,opencv/opencv,opencv/opencv