video: driver: fix copyright markings

fix copyright markings and have all markings in one
multiline comment.

Change-Id: I481c6213bb25e8c278956ad6a51df3fc5c1aabf2
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>

driver/vidc/inc/msm_vdec.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2020-2021,, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
  * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
  */