drm/i915/dram: convert to struct intel_display

drm/i915/dram: convert to struct intel_display

Convert everything except uncore access to struct
intel_display. Converting the graphics version checks to display version
checks needs a tweak for display version 13, which have graphics version
12.

While at it, convert logging to drm_dbg_kms().

v2: Handle display version 13

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251120161846.3128999-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>