ASoC: dt-bindings: ti, j721e: Update maintainer and author information

My employment with TI is coming to an end, add the copyright and author comments
as they due and change the maintainer mail address.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20201215130512.8753-3-peter.ujfalusi@ti.comSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/ti,j721e-cpb-audio.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/sound/ti,j721e-cpb-audio.yaml#
@@ -7,7 +9,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Texas Instruments J721e Common Processor Board Audio Support
 
 maintainers:
-  - Peter Ujfalusi <peter.ujfalusi@ti.com>
+  - Peter Ujfalusi <peter.ujfalusi@gmail.com>
 
 description: |
   The audio support on the board is using pcm3168a codec connected to McASP10

Documentation/devicetree/bindings/sound/ti,j721e-cpb-ivi-audio.yaml

 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+# Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/sound/ti,j721e-cpb-ivi-audio.yaml#
@@ -7,7 +9,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Texas Instruments J721e Common Processor Board Audio Support
 
 maintainers:
-  - Peter Ujfalusi <peter.ujfalusi@ti.com>
+  - Peter Ujfalusi <peter.ujfalusi@gmail.com>
 
 description: |
   The Infotainment board plugs into the Common Processor Board, the support of the