drm/i915/bios: fix a comment referencing struct drm_i915_private

struct intel_vbt_data is within struct intel_display nowadays, not
struct drm_i915_private.

Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://lore.kernel.org/r/b7a9a7c64f41cf61749a42ed4102e04b500fde83.1746529001.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Author: jnikula

drivers/gpu/drm/i915/display/intel_bios.h

@@ -24,7 +24,7 @@
 /*
  * Please use intel_vbt_defs.h for VBT private data, to hide and abstract away
  * the VBT from the rest of the driver. Add the parsed, clean data to struct
- * intel_vbt_data within struct drm_i915_private.
+ * intel_vbt_data within struct intel_display.
  */
 
 #ifndef _INTEL_BIOS_H_