correct distCoeffs of SIMPLE_RADIAL

[Master-cai]

Hi, there is a typo of the distCoeffs of "SIMPLE_RADIAL", which will cause

cv2.error:
OpenCV(4.7.0) /home/conda/feedstock_root/build_artifacts/libopencv_1674428302344/work/modules/calib3d/src/undistort.dispatch.cpp:411: error: (-215:Assertion failed) CV_IS_MAT(_distCoeffs) && (_distCoeffs->rows == 1 || _distCoeffs->cols == 1) && (_distCoeffs->rows*_distCoeffs->cols == 4 || _distCoeffs->rows*_distCoeffs->cols == 5 || _distCoeffs->rows*_distCoeffs->cols == 8 || _distCoeffs->rows*_distCoeffs->cols == 12 || _distCoeffs->rows*_distCoeffs->cols == 14) in function 'cvUndistortPointsInternal'

I have fixed it by padding the params.

[liruilong940607]

Ah right thanks for the fixing!