disp: msm: update copyright description

This change updates copyright description with correct
license marking as per the guidelines.

Change-Id: Ia74b721e78afcc7f8e88bcbccfcf15430111ec37
Signed-off-by: Yashwanth <quic_yvulapu@quicinc.com>

msm/dsi/dsi_ctrl.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
  * Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
  */