Kerberos Configuration Manager - Does it work with SQL Server 2016?
This currently is not available yet for SQL Server 2016 unfortunately. You will have to manually add your SPN's using 

 setspn –S MSSQLSvc/&lt;server name&gt;:1433 domain\account


EDIT: The Kerberos Configuration manager is now available for SQL Server 2016
https://www.microsoft.com/en-us/download/details.aspx?id=39046