drm/i915: remove an extra level of indirection in PCI ID list

Add the PCI IDs directly in the pciidlist array instead of defining an
extra macro. The minor benefit from this is neater diffs when adding to
the end of the list.

v2: drop the "aka" comment (Ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446053589-21283-1-git-send-email-jani.nikula@intel.com