Hope it has the fix for you!
@vochong - feel free to cherry-pick the NSS commits or clone my repo and put the commits necessary on top to get your device working. I’m in the middle of moving so my build computer is packed away for the next 2 weeks. If you have OpenWrt working - you have what it takes to add the rest.
Here are all the NSS commits on top of 21.02:
You can clone via post #2 above or cherry-pick each commit in order (this is an example of grabbing that first commit, you’ll have to cherry-pick each hash):
git remote add ACwifidude https://github.com/ACwifidude/openwrt.git
git fetch ACwifidude
git cherry-pick 0fb7d89
git cherry-pick ….