Fix _DefaultLinkMode for NativeAOT.

[filipnavara]

Alternative to #18530, see #18530 (comment)
Contributes to #18482

[ivanpovazan]

/azp run

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• xamarin.ios-16.5.0.647.pkg
• xamarin.mac-9.4.0.647.pkg

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• iOS: (empty diff detected)
• tvOS: (empty diff detected)
• MacCatalyst: (empty diff detected)
• macOS: (empty diff detected)

❗ API diff vs stable (Breaking changes)

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• iOS: vsdrops gist (:heavy_exclamation_mark: Breaking changes :heavy_exclamation_mark:)
• tvOS: vsdrops gist (:heavy_exclamation_mark: Breaking changes :heavy_exclamation_mark:)
• MacCatalyst: vsdrops gist (:heavy_exclamation_mark: Breaking changes :heavy_exclamation_mark:)
• macOS: vsdrops gist (:heavy_exclamation_mark: Breaking changes :heavy_exclamation_mark:)
• Microsoft.iOS vs Microsoft.MacCatalyst: vsdrops gist

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[ivanpovazan]

Looks good, thank you!
I double checked this with MAUI sample on IOS, works as expected.

@filipnavara should we wait for you to test on your macOS support work before merging in?

[filipnavara]

I did some limited testing and I can confirm that the MSBuild properties look sane for my use case. (I didn't do full rebase of all necessary PRs to check the executable on output yet)