Typo in documentation of LBPHFaceRecognizer

[sylee957]

System information (version)

• OpenCV => ❔
• Operating System / Platform => ❔
• Compiler => ❔

Detailed description

I see there is a typo LLBPHFaceRecognizer -> LBPHFaceRecognizer

https://docs.opencv.org/4.4.0/df/d25/classcv_1_1face_1_1LBPHFaceRecognizer.html

which can be from this line

opencv_contrib/modules/face/include/opencv2/face/facerec.hpp

Line 177 in d643991

- grid_x see LLBPHFaceRecognizer::create.

Steps to reproduce

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  answers.opencv.org, Stack Overflow, etc and have not found solution
• I updated to latest OpenCV version and the issue is still there
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