[llvm] [llvm-readobj][COFF] Add support for version 2 of CHPE metadata (PR #109545)

[Eli Friedman via llvm-commits]

efriedma-quic wrote:

If I'm reading the code correctly, actually, it doesn't affect COFFObjectFile::initLoadConfigPtr... because the check there is against `sizeof(CHPEMetadata)`, which is the size of the pointer, not the size of the struct.

https://github.com/llvm/llvm-project/pull/109545