dt-bindings: mediatek: add compatible for mt8183 pwrap

This adds dt-binding documentation of pwrap for Mediatek MT8183 SoC
Platform.
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/soc/mediatek/pwrap.txt

@@ -23,6 +23,7 @@ Required properties in pwrap device node.
 	"mediatek,mt7622-pwrap" for MT7622 SoCs
 	"mediatek,mt8135-pwrap" for MT8135 SoCs
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
+	"mediatek,mt8183-pwrap" for MT8183 SoCs
 - interrupts: IRQ for pwrap in SOC
 - reg-names: Must include the following entries:
   "pwrap": Main registers base