Need help enabling graphics acceleration for Intel HD 520 on Mojave.

Hi. I've successfully installed Mojave (10.14.2) on my Dell Inspiron 15 5567. It has an Intel i3-6006U processor and onboard graphics is Intel HD 520. No discreet graphics. I'm having trouble enabling graphics acceleration for my system, despite having read the tutorials and guides. I have the following kexts and drivers, and this my config.plist. Can someone please have a look at my config.plist and tell me what is it that I was doing wrong. Using Clover v4844. Thanks