add unsupported attributes to System.Net.Security

[wfurt]

fixes #57097
The method mentioned are as follow:

1. QueryContextClientSpecifiedSpn powers NegotiateAuthentication.TargetName on server side

runtime/src/libraries/System.Net.Security/src/System/Net/Security/NegotiateAuthentication.cs

Line 218 in 19730e5

public string? TargetName => IsServer ? _ntAuthentication?.ClientSpecifiedSpn : _ntAuthentication?.Spn;

It seems like the notation is not flexible enough to distinguish client vs server so I'll leave it as is.

2. CipherSuitesPolicyPal supports public CipherSuitesPolicy. I added unsupported attributes for Windows and Android.
   The Android is interesting as the class has remark about InitializeSslContext and we throw there but the server seems to be ignored. Can you please clarify @simonrozsival ? And any reason why the class does not throw directly just like Windows?

3. QueryContextAssociatedName was removed in 7.0 by Implement NegotiateAuthentication API #70720

4. Renegotiate is backend for public NegotiateClientCertificateAsync. Added SupportedOSPlatform attributes.

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Issue Details

---

fixes #57097
The method mentioned are as follow:

1. QueryContextClientSpecifiedSpn powers NegotiateAuthentication.TargetName on server side

runtime/src/libraries/System.Net.Security/src/System/Net/Security/NegotiateAuthentication.cs

Line 218 in 19730e5

public string? TargetName => IsServer ? _ntAuthentication?.ClientSpecifiedSpn : _ntAuthentication?.Spn;

It seems like the notation is not flexible enough to distinguish client vs server so I'll leave it as is.

2. CipherSuitesPolicyPal supports public CipherSuitesPolicy. I added unsupported attributes for Windows and Android.
   The Android is interesting as the class has remark about InitializeSslContext and we throw there but the server seems to be ignored. Can you please clarify @simonrozsival ? And any reason why the class does not throw directly just like Windows?

3. QueryContextAssociatedName was removed in 7.0 by Implement NegotiateAuthentication API #70720

4. Renegotiate is backend for public NegotiateClientCertificateAsync. Added SupportedOSPlatform attributes.

Author:	wfurt
Assignees:	wfurt
Labels:	area-System.Net.Security
Milestone:	8.0.0

[simonrozsival]

@wfurt I think you're right that the CipherSuitesPolicyPal should throw PNSE on Android the same way we do it on Windows. We should probably change that.

[buyaa-n]

Annotations LGTM