[mono] Enable System.IO.Hashing tests on ios and disable them on tvos

[ivanpovazan]

As reported in: #90499 System.IO.Hashing.Tests.Crc32Tests are failing on tvos-arm64 as part of the runtime-extra-platforms pipeline.

Due to the facts that:

• I was not able to reproduce the reported failure locally
• The crash log does not include enough information to demystify what is causing the crash
• And by verifying that the tests are passing on iOS devices

This PR disables running System.IO.Hashing libraries tests on tvos and enables running them on ios platforms, which contributes towards having a green CI by keeping the same test coverage on iOS-like platforms.

---

Fixes: #90499

[ghost]

Tagging subscribers to this area: @dotnet/area-infrastructure-libraries
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Issue Details

---

As reported in: #90499 System.IO.Hashing.Tests.Crc32Tests are failing on tvos-arm64 as part of the runtime-extra-platforms pipeline.

Due to the facts that:

• I was not able to reproduce the reported failure locally
• The crash log does not include enough information to demystify what is causing the crash
• And by verifying that the tests are passing on iOS devices

This PR disables running System.IO.Hashing libraries tests on tvos and enables running them on ios platforms, which contributes towards having a green CI by keeping the same test coverage on iOS-like platforms.

---

Fixes: #90499

Author:	ivanpovazan
Assignees:	ivanpovazan
Labels:	area-Infrastructure-libraries
Milestone:	-

[ghost]

Tagging subscribers to this area: @directhex
See info in area-owners.md if you want to be subscribed.

Issue Details

---

As reported in: #90499 System.IO.Hashing.Tests.Crc32Tests are failing on tvos-arm64 as part of the runtime-extra-platforms pipeline.

Due to the facts that:

• I was not able to reproduce the reported failure locally
• The crash log does not include enough information to demystify what is causing the crash
• And by verifying that the tests are passing on iOS devices

This PR disables running System.IO.Hashing libraries tests on tvos and enables running them on ios platforms, which contributes towards having a green CI by keeping the same test coverage on iOS-like platforms.

---

Fixes: #90499

Author:	ivanpovazan
Assignees:	ivanpovazan
Labels:	area-Infrastructure-libraries, area-Infrastructure-mono
Milestone:	-

[kotlarmilos]

/azp run runtime-ioslike

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[ivanpovazan]

Failures on tvos are unrelated.

All enabled System.IO.Hashing tests are passing on the iOS lane: https://helixre107v0xdeko0k025g8.blob.core.windows.net/dotnet-runtime-refs-pull-90984-merge-a48cda4aca9646e6a3/System.IO.Hashing.Tests/1/net.dot.System.IO.Hashing.Tests.log?helixlogtype=result

[ivanpovazan]

@kotlarmilos @steveisok not sure whether this should be backported for having a cleaner CI builds on .NET8 branches

[kotlarmilos]

It is an infra change without risk, so I think we should backport it.

[ivanpovazan]

/backport to release/8.0

[github-actions]

Started backporting to release/8.0: https://github.com/dotnet/runtime/actions/runs/5998341091