drm/exynos: Change Andrzej Pietrasiewicz's e-mail address

My @samusung.com address is going to cease existing soon, so change it to
an address which can actually be used to contact me.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_scaler.c

 /*
  * Copyright (C) 2017 Samsung Electronics Co.Ltd
  * Author:
- *	Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *	Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as

drivers/gpu/drm/exynos/regs-scaler.h

@@ -2,7 +2,7 @@
  *
  * Copyright (c) 2017 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com/
- * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ * Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
  *
  * Register definition file for Samsung scaler driver
  *