drm/bridge: synopsys: Fix Copyright Writing Style of dw-hdmi-qp

The standard writing style should be: Co., Ltd.
This fix the mail server warning:
DBL_SPAM(6.50)[co.ltd:url];

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241216101015.3726517-1-andyshrk@163.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241216101015.3726517-1-andyshrk@163.com

Author: Andy Yan

drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) Rockchip Electronics Co.Ltd
+ * Copyright (C) Rockchip Electronics Co., Ltd.
  * Author:
  *      Algea Cao <algea.cao@rock-chips.com>
  */