update copyright

litex_boards/platforms/qmtech_EP4CE15.py

 #
 # This file is part of LiteX-Boards.
 #
-# Copyright (c) 2014-2019 Florent Kermarrec <florent@enjoy-digital.fr>
+# Copyright (c) 2020 Basel Sayeh <Basel.Sayeh@hotmail.com>
 # SPDX-License-Identifier: BSD-2-Clause
 
 from litex.build.generic_platform import *

litex_boards/targets/qmtech_EP4CE15.py

@@ -3,7 +3,7 @@
 #
 # This file is part of LiteX-Boards.
 #
-# Copyright (c) 2015-2020 Florent Kermarrec <florent@enjoy-digital.fr>
+# Copyright (c) 2020 Basel Sayeh <Basel.Sayeh@hotmail.com>
 # SPDX-License-Identifier: BSD-2-Clause
 
 import os