THE OEMXipKernel is not something that you get with each build. It's something that is device specific. So copy your OEMXipKernel from another build and rename that folder to 21916 and you're good to go. Does that make sense? Or to save you time, here's mine
So every time you import a new build in your kitchen, just copy this OEMXipKernel and rename it to your new build, done! You might not even have to rename it, I'm not sure. I always do though.