Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c
index 38ae4fd..bfae98a 100644
--- a/arch/sparc/kernel/central.c
+++ b/arch/sparc/kernel/central.c
@@ -168,7 +168,7 @@
 		goto out;
 	}
 
-	if (!strcmp(op->dev.of_node->parent->name, "central"))
+	if (of_node_name_eq(op->dev.of_node->parent, "central"))
 		p->central = true;
 
 	p->pregs = of_ioremap(&op->resource[0], 0,