Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/include/asm-generic/device.h b/include/asm-generic/device.h
index d7c76bb..974517c 100644
--- a/include/asm-generic/device.h
+++ b/include/asm-generic/device.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
  */
 #ifndef _ASM_GENERIC_DEVICE_H
 #define _ASM_GENERIC_DEVICE_H