wishbone: add kernel >= 6.4.0 support

pcie-wb/wishbone.c

@@ -807,7 +807,11 @@ static int __init wishbone_init(void)
 		goto fail_last;
 	}
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6,4,0)
 	wishbone_master_class = class_create(THIS_MODULE, "wbm");
+#else
+  wishbone_master_class = class_create("wbm");
+#endif
 	if (IS_ERR(wishbone_master_class)) {
 		err = PTR_ERR(wishbone_master_class);
 		goto fail_last;