@valmeida are you enabling the
Kernel >
Quirks >
ForceAquantiaEthernet entry in the OC config.plist?

By default this entry is set to False/Disabled.
Do you have a copy of your PCIe Device information, which you can Export from Hackintool?
Have you tried adding the Device Path for your Aquantia Ethernet controller to the
DeviceProperties >
Add section of your OC config, along with the child entry - built-in > Data > <01>
It would look something like the screenshot below, but with a different Device Path entry.
That is all I needed to do to get another/different Ethernet controller to be set as Built-in and for the Apple services to work.
You might want to just try enabling the ForceAquantiaEthernet entry first, as that might fix the issue on its own.