Nightly: calib3d/StereoBM is broken with CPU_BASELINE=AVX512 #15744
Description
Test: Calib3d_StereoBM.regression
[ RUN ] Calib3d_StereoBM.regression
progress: 0%
/build/3_4_opt-avx512_noICV-skx-lin64/opencv/modules/calib3d/test/test_stereomatching.cpp:798: Failure
Expected: (cvtest::norm(fixedFloatDisp, leftDisp, cv::NORM_L2 | cv::NORM_RELATIVE)) < (0.005 + double(2.22044604925031308084726333618164062e-16L)), actual: 1478.21 vs 0.005
progress: 3%
progress: 7%
...
relates #15180