Added license identifier for all 3 shell files: BSD-3-Clause per legal request

Signed-off-by: Nitin Nakka <nitinn@qti.qualcomm.com>

Author: nitinn22

Runner/suites/Multimedia/GSTreamer/Display/Waylandsink_Playback/run.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 # Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
-# SPDX-License-Identifier: BSD-3-Clause#
+# SPDX-License-Identifier: BSD-3-Clause per legal request. 
 # Waylandsink Playback validation using GStreamer
 # Tests video playback using waylandsink with videotestsrc
 # Validates Weston/Wayland server and display connectivity

Runner/suites/Multimedia/GSTreamer/Video/Video_Encode_Decode/run.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 # Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
-# SPDX-License-Identifier: BSD-3-Clause#
+# SPDX-License-Identifier: BSD-3-Clause per legal request. 
 # Video Encode/Decode validation using GStreamer with V4L2 hardware accelerated codecs
 # Supports: v4l2h264dec, v4l2h265dec, v4l2h264enc, v4l2h265enc
 # Uses videotestsrc for encoding, then decodes the encoded files

Runner/utils/lib_gstreamer.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 # Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
-# SPDX-License-Identifier: BSD-3-Clause#
+# SPDX-License-Identifier: BSD-3-Clause per legal request.
 # Runner/utils/lib_gstreamer.sh
 #
 # GStreamer helpers.