[lld-macho] Refactor BPSectionOrderer with CRTP. NFC#124482

MaskRay merged 3 commits intomainllvm/llvm-project:mainfrom

users/MaskRay/spr/lld-macho-refactor-bpsectionorderer-with-crtp-nfcllvm/llvm-project:users/MaskRay/spr/lld-macho-refactor-bpsectionorderer-with-crtp-nfcCopy head branch name to clipboard