Disable Wifi PMK Cache on WEC7

Can you let me know how to disable PMK caching on T30 with WEC7.

https://support.microsoft.com/en-in/help/2989575/fix-pmk-caching-works-incorrectly-when-you-roam-on-a-wi-fi-network-in

Our latest stable WInCE 7 image (2.3) - has all WEC 7 Updates until 2019M03. So it should include update mentioned in the article above.