drm/xe/guc: Demote GuC IDs usage message to debug

Printing message at INFO level about available GuC IDs is not that
important, DEBUG level is enough. It will also match message about
available doorbells:

 [ ] xe ... [drm:xe_guc_id_mgr_init [xe]] GT0: using 65535 GuC IDs
 [ ] xe ... [drm:xe_guc_db_mgr_init [xe]] GT0: using 256 doorbells

While at it, use proper "GuC" name.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240701193030.978-1-michal.wajdeczko@intel.com

drivers/gpu/drm/xe/xe_guc_id_mgr.c

@@ -97,8 +97,8 @@ int xe_guc_id_mgr_init(struct xe_guc_id_mgr *idm, unsigned int limit)
 	if (ret)
 		return ret;
 
-	xe_gt_info(idm_to_gt(idm), "using %u GUC ID%s\n",
-		   idm->total, str_plural(idm->total));
+	xe_gt_dbg(idm_to_gt(idm), "using %u GuC ID%s\n",
+		  idm->total, str_plural(idm->total));
 	return 0;
 }