src/*: normalize Google copyright headers

As per internal discussion, there's no "ChromiumOS Authors" that's
meaningful outside the Chromium OS project, so change everything to the
contemporary "Google LLC."

While at it, also ensure consistency in the LLC variants (exactly one
trailing period).

"Google Inc" does not need to be touched, so leave them alone.

Change-Id: Ia0780e31cdab879d2aaef62a2f0403e3db0a4ac8
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/28756
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Joel Kitching <kitching@google.com>

src/cpu/amd/car/post_cache_as_ram.c

@@ -3,7 +3,7 @@
  *
  * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>,
  *	 Raptor Engineering
- * Copyright (C) 2012 ChromeOS Authors
+ * Copyright (C) 2012 Google LLC
  * 2005.6 by yhlu
  * 2006.3 yhlu add copy data from CAR to ram
  *

src/cpu/intel/haswell/romstage.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2012 ChromeOS Authors
+ * Copyright (C) 2012 Google 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

src/cpu/intel/haswell/smmrelocate.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2013 ChromeOS Authors
+ * Copyright (C) 2013 Google 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

src/cpu/intel/smm/gen1/smmrelocate.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2013 ChromeOS Authors
+ * Copyright (C) 2013 Google 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

src/cpu/x86/smm/smm_module_handler.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2013 ChromeOS Authors
+ * Copyright (C) 2013 Google 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

src/cpu/x86/smm/smm_module_loader.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2012 ChromeOS Authors
+ * Copyright (C) 2012 Google 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

src/cpu/x86/smm/smm_stub.S

@@ -1,7 +1,7 @@
 /*
  * This file is part of the coreboot project.
  *
- * Copyright (C) 2012 ChromeOS Authors
+ * Copyright (C) 2012 Google LLC
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as