USB: core: move existing SPDX tags to top of the file

To match the rest of the kernel, the SPDX tags for the drivers/usb/core/
files are moved to the first line of the file.  This makes it more
obvious the tag is present as well as making it match the other 12k
files in the tree with this location.

It also uses // to match the "expected style" as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/core/buffer.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * DMA memory management for framework level HCD code (hc_driver)
  *
@@ -5,7 +6,6 @@
  * and should work with all USB controllers, regardless of bus type.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>

drivers/usb/core/config.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/usb.h>

drivers/usb/core/driver.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/driver.c - most of the driver model stuff for usb
  *
@@ -16,7 +17,6 @@
  *	(C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * NOTE! This is not actually a driver at all, rather this is
  * just a collection of helper routines that implement the

drivers/usb/core/endpoint.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/endpoint.c
  *
@@ -6,7 +7,6 @@
  * (C) Copyright 2006 Novell Inc.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * Endpoint sysfs stuff
  */

drivers/usb/core/file.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/file.c
  *
@@ -14,7 +15,6 @@
  * (C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>

drivers/usb/core/generic.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/generic.c - generic driver for USB devices (not interfaces)
  *
@@ -16,7 +17,6 @@
  *	(C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/usb.h>

drivers/usb/core/hub.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB hub driver.
  *
@@ -7,7 +8,6 @@
  * (C) Copyright 2001 Brad Hards (bhards@bigpond.net.au)
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/kernel.h>

drivers/usb/core/message.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * message.c - synchronous message handling
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/pci.h>	/* for scatterlist macros */

drivers/usb/core/notify.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * All the USB notify logic
  *
@@ -7,7 +8,6 @@
  * but fixed up to not be so broken.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 

drivers/usb/core/sysfs.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/sysfs.c
  *
@@ -8,7 +9,6 @@
  * All of the sysfs file attributes for usb devices and interfaces.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 

drivers/usb/core/urb.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>

drivers/usb/core/usb.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/usb.c
  *
@@ -13,7 +14,6 @@
  * (C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * NOTE! This is not actually a driver at all, rather this is
  * just a collection of helper routines that implement the

drivers/usb/core/usb.h

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/pm.h>