[libc] Implement sys/sysmacros.h Linux header. - #216865

[libc] Implement sys/sysmacros.h Linux header.#216865

vonosmas wants to merge 3 commits into

llvm:mainllvm/llvm-project:mainfrom

vonosmas:sysmacrosvonosmas/llvm-project:sysmacrosCopy head branch name to clipboard