[release/5.0] Backport AVX context fix #66120#66356

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carlossanlop merged 4 commits intodotnet:release/5.0from

agocke:backport-66120

Mar 15, 2022

Commits on Mar 8, 2022

Use CopyContext to restore saved context on X86 (#65490)

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Do not copy XState other than AVX when redirecting for GC stress (#65825)

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null-check the redirect context before using. (#65910)

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EE Suspension on x86 should use RtlRestoreContext when available (#65878)

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