BigFix has provided only a 64-bit version Fixlet for Cumulative Update Package 1 for SQL Server 2016 RTM - KB3164674 (Patches for Windows site, version 2573).
This is in accordance to Microsoft’s SQL Server 2016 installation requirements, which states that SQL Server 2016 is supported on x64 processors only.
The installation requirements further states that SQL Server 2016 is no longer supported on x86 processors. Neither is WOW64 supported for SQL Server 2016 installations.To learn more, see https://msdn.microsoft.com/en-sg/library/ms143506.aspx.
The 64-bit Fixlet is called Cumulative Update 1 for SQL Server 2016 - SQL Server 2016 - KB3164674.