Fix whitespace and copyrights

There were some mistakes in previous merges from pi-dev to master in
whitespace and copyright notices. This fixes them.

Test: tested as part of http://go/ag/4674759
Change-Id: Iae46c121de59233b62925a4d8c97f2b370e3e7f1

libwvdrmengine/vts/vendor_module/factory.cpp

@@ -24,5 +24,3 @@ namespace widevine_vts {
         }
     };
 }; // namespace widevine_vts
-
-

libwvdrmengine/vts/vendor_module/vts_module.cpp

@@ -1,5 +1,7 @@
 //
-// Copyright 2017 Google Inc. All Rights Reserved.
+// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
 //
 #include "gtest/gtest.h"
 #include "license_request.h"
@@ -158,5 +160,3 @@ namespace widevine_vts {
     }
 
 }; // namespace widevine_vts
-
-

libwvdrmengine/vts/vendor_module/vts_module.h

@@ -1,5 +1,7 @@
 //
-// Copyright 2017 Google Inc. All Rights Reserved.
+// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine Master
+// License Agreement.
 //
 #ifndef WIDEVINE_VENDOR_VTS_MODULE
 #define WIDEVINE_VENDOR_VTS_MODULE