net: usb: aqc111: Use the correct style for SPDX License Identifier

This patch corrects the SPDX License Identifier style in
header files related to drivers for USB Network devices.
This patch gives an explicit block comment to the
SPDX License Identifier.

Changes made by using a script provided by Joe Perches here:
https://lkml.org/lkml/2019/2/7/46.
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/aqc111.h

-/* SPDX-License-Identifier: GPL-2.0-or-later
- * Aquantia Corp. Aquantia AQtion USB to 5GbE Controller
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Aquantia Corp. Aquantia AQtion USB to 5GbE Controller
  * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
  * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
  * Copyright (C) 2002-2003 TiVo Inc.