drm/i915: Use intel_memory_region_type_is_local() in the BIOS FB takeover

Replace the hardcoded PTE vs. memory region is_local checks
in the BIOS FB takeover with intel_memory_region_type_is_local().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250313140838.29742-10-ville.syrjala@linux.intel.com


Reviewed-by: Jouni Högander <jouni.hogander@intel.com>