[lld] [LLD][COFF] Add ignored linker flags (PR #150815)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

> Since LLVM does not implement POGO (Profile-guided Optimization, also known as "PGO")

This seems mildly incorrect - LLVM/Clang does support PGO just fine, but it doesn't support the MSVC intermediate files or produce the exact same metadata in the output as MSVC does.

https://github.com/llvm/llvm-project/pull/150815