dt-bindings: power: mediatek: Update maintainer list

Update the maintainer list of power controller binding.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220729063208.16799-6-tinghan.shen@mediatek.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/power/mediatek,power-controller.yaml

@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: Mediatek Power Domains Controller
 
 maintainers:
-  - Weiyi Lu <weiyi.lu@mediatek.com>
+  - MandyJH Liu <mandyjh.liu@mediatek.com>
   - Matthias Brugger <mbrugger@suse.com>
 
 description: |