drm/i915: Expose intel_memory_type_str()
Rename region_type_str() into intel_memory_type_str() and
expose it outside intel_memory_region.c. I'll have another
use for this in the BIOS FB takeover code.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250313140838.29742-3-ville.syrjala@linux.intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>