Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index e7923b5..12ad344 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * tcs3472.c - Support for TAOS TCS3472 color light-to-digital converter
  *
  * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net>
  *
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License.  See the file COPYING in the main
- * directory of this archive for more details.
- *
  * Color light sensor with 16-bit channels for red, green, blue, clear);
  * 7-bit I2C slave address 0x39 (TCS34721, TCS34723) or 0x29 (TCS34725,
  * TCS34727)