[codemod][llvm15] LLVM-15 fixes for caffe2/caffe2/video/video_decoder.cc (#89937)
Summary: This fixes issues which block `caffe2/caffe2/video/video_decoder.cc` from compiling with LLVM-15.
Test Plan: Sandcastle
Reviewed By: meyering
Differential Revision: D41603386
Pull Request resolved: https://github.com/pytorch/pytorch/pull/89937
Approved by: https://github.com/soumith
