[lld/mac] For catalyst outputs, tolerate implicitly linking against arm64e mac tbd files (#193065)
Some mac libraries published in the Xcode SDK are now arm64e only, and
catalyst applications should be able to link against these even if
building for arm64.
This matches ld-prime behavior.
https://reviews.llvm.org/D124336 allows linking against MacOS libraries,
but only if the architecture matches exactly.
https://reviews.llvm.org/D130683 allows linking against tbds with ABI
compatibility architectures, but the logic isn't used for this
particular case.
[Assisted-by](https://t.ly/Dkjjk): [Claude Opus
4.6](https://www.anthropic.com/news/claude-opus-4-6)
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Co-authored-by: Nuri Amari <nuriamari@fb.com>