Fix CRLF line ending issues and apply @jkotas comment suggestions

- Revert whitespace/CRLF changes in SslStreamPal.Windows.cs
- Revert whitespace/CRLF changes in ExtendedProtectionPolicy.cs
- Apply @jkotas suggestion for SslStreamPal.Windows.cs comment
- Apply @jkotas suggestion for ExtendedProtectionPolicy.cs comment

Co-authored-by: rzikm <32671551+rzikm@users.noreply.github.com>

Author: Copilot