The latest release, 2.1(2), for "Integrated System Azure Stack - System Updates" has two files with the same description of "OEM Extensions Package Containing Drivers".
https://software.cisco.com/download/home/283862063/type/286320368/release/2.1(2)
As per the previous releases, the file with name "Cisco_UCS_AzureStack_FwUpdate_0.9.2.70_Signed.zip" should have the description "Cisco Azure Stack Platform Upgrade Automation".
The files themselves are all correct, but the descriptions are confusing at first glance.