We don't need to do much here because the graphics core is the same as
Kaby Lake.
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Tested on an 8700. All behaviour is identical to Kaby Lake, so we can reuse
most things after adding the PCI ID and device structure.
There will be more PCI IDs, but I've only added the one I know the meaning o
This avoids calling random ioctl()s and returning nonsensical errors for
unsupported devices. In particular, loading is much cleaner on setups
where the driver needs to iterate over multiple devices to find the correct
one because the Intel graphics device is not the first DRM device.
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Fixes th