drm/i915: add LNL PCI IDs

Although not supported by i915 core, the display code needs to know the
LNL PCI IDs.

Long term, xe and i915 should probably share the file defining PCI IDs.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d2baf7f89ed4df63674dac3d59982de69a7b14d4.1716399081.git.jani.nikula@intel.comSigned-off-by: Jani Nikula <jani.nikula@intel.com>

include/drm/i915_pciids.h

@@ -783,4 +783,10 @@
 	MACRO__(0x7DD1, ## __VA_ARGS__), \
 	MACRO__(0x7DD5, ## __VA_ARGS__)
 
+/* LNL */
+#define INTEL_LNL_IDS(MACRO__, ...) \
+	MACRO__(0x6420, ## __VA_ARGS__), \
+	MACRO__(0x64A0, ## __VA_ARGS__), \
+	MACRO__(0x64B0, ## __VA_ARGS__)
+
 #endif /* _I915_PCIIDS_H */