LdapSessionOptions.ReferralChasing property setter doesn't work on all Linux platforms

[steveharter]

These tests were recently re-enabled for Linux (all tests were disabled) and a recent DI test run for #111877 had failures for:

[Centos.9.Amd64.Open]
[Debian.13.Amd64.Open]
[net10.0-linux-Debug-x64-Mono_Interpreter_Debug-Ubuntu.2204.Amd64.Open]

with test failure:

   at System.DirectoryServices.Protocols.Tests.LdapSessionOptionsTests.ReferralChasing_Set_GetReturnsExpected_On_Linux(ReferralChasingOptions value) in /_/src/libraries/System.DirectoryServices.Protocols/tests/LdapSessionOptionsTests.cs:line 43

Assert.Equal() Failure: Values differ
Expected: None
Actual:   All

Apparently, setting the value for None, which converts to 0 \ false for Linux when setting that bool property doesn't stick and the getter always returns All. Here's the current source for the Linux version of the setter for public ReferralChasingOptions ReferralChasing:

 SetBoolValueHelper(LdapOption.LDAP_OPT_REFERRALS, value == ReferralChasingOptions.All);

This tests past locally for me on Ubuntu.

Flagging as potential test bug, since these other platforms may not support a None options.

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