[lld] [llvm] [LLVM] Use `reportFatalUsageError` for LTO usage errors (PR #140955)

[via llvm-commits]

Kewen12 wrote:

Hi this PR causes check-lld failed that breaks out buildbots. I reverted locally and it passes. Please put up a fix or revert if necessary. Thanks!

>TEST 'lld :: COFF/lto-cache-errors.ll' FAILED

https://github.com/llvm/llvm-project/pull/140955