src/device: Update license headers

Update all of the license headers to make sure they are compliant
with coreboot's license header policy.

Change-Id: I5e5180ec4303a121609b4acffb284daea6b08379
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/14325
Reviewed-by: Myles Watson <mylesgw@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/device/pci_device.c b/src/device/pci_device.c
index 5123229..5cd0053 100644
--- a/src/device/pci_device.c
+++ b/src/device/pci_device.c
@@ -2,8 +2,11 @@
  * This file is part of the coreboot project.
  *
  * It was originally based on the Linux kernel (drivers/pci/pci.c).
+ * Copyright 1993 -- 1997 Drew Eckhardt, Frederic Potter,
+ * David Mosberger-Tang
  *
- * Modifications are:
+ * Copyright 1997 -- 1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *
  * Copyright (C) 2003-2004 Linux Networx
  * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
  * Copyright (C) 2003-2006 Ronald G. Minnich <rminnich@gmail.com>
@@ -13,15 +16,19 @@
  * Copyright (C) 2005-2009 coresystems GmbH
  * (Written by Stefan Reinauer <stepan@coresystems.de> for coresystems GmbH)
  * Copyright (C) 2014 Sage Electronic Engineering, LLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
 /*
  * PCI Bus Services, see include/linux/pci.h for further explanation.
- *
- * Copyright 1993 -- 1997 Drew Eckhardt, Frederic Potter,
- * David Mosberger-Tang
- *
- * Copyright 1997 -- 1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
  */
 
 #include <arch/acpi.h>