I dont have a device to test, but they "should" be this...
Download this package
Extract it and import this folder into your boot.wim
I had the same problem. Testing Lenovo \ETHERNET\PRO1000\Win32\NDIS61\, no success.
Check your Bios Version. If it's not the 1.17, make an Update:
After importing the PXE Driver, deploy your PXE Representative.
Two points, and it works for my Provisioning.