intel: sync i915_pciids.h with kernel

Two new patches landed in kernel adding new PCI ids:
123f62de419f ("drm/i915/rkl: Add RKL platform info and PCI ids")
52797a8e8529 ("drm/i915/ehl: Add new PCI ids")

Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>