intel: Adding missing Broxton PCI IDs.

These IDs were already part of the kernel since:

kernel commit 985dd4360fdf2533fe48a33a4a2094f2e4718dc0
Author: Imre Deak <imre.deak@intel.com>
Date:   Thu Jan 28 16:04:12 2016 +0200

    drm/i915/bxt: update list of PCIIDs

Cc: Venkateswarlu Vinjamuri <venkateswarlu.v.vinjamuri@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>