pci: add missing PCI id of Coffee Lake GPU

The PCI id of an UHD Graphics 630 for Coffee Lake GPUs is missing in
the PCI id list of all Intel GPUs.

You can take a look at
https://dgpu-docs.intel.com/devices/hardware-table.html to check that
this device id exists. Or check the linux code:
https://github.com/torvalds/linux/commit/d0e062ebb3a44b56a7e672da568334c76f763552

MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D33460