[lld] [llvm] [lld][COFF] Restore `lto-embed-bitcode` and `-fembed-bitcode` Bitcode Embedding Features (PR #188398)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

@realoriginal For merging, I noticed that you email address on github is set to private; see https://github.com/llvm/llvm-project/blob/main/.github/workflows/email-check.yaml#L34-L37 for our policy on the matter.

https://github.com/llvm/llvm-project/pull/188398