dt-bindings: soc: mediatek: pwrap: add compatible for mt8188

Add dt-binding documentation of pwrap for Mediatek MT8188
Signed-off-by: Sen Chu <sen.chu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220726104242.24839-1-sen.chu@mediatek.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

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

@@ -28,6 +28,7 @@ Required properties in pwrap device node.
 	"mediatek,mt8173-pwrap" for MT8173 SoCs
 	"mediatek,mt8183-pwrap" for MT8183 SoCs
 	"mediatek,mt8186-pwrap" for MT8186 SoCs
+	"mediatek,mt8188-pwrap", "mediatek,mt8195-pwrap" for MT8188 SoCs
 	"mediatek,mt8195-pwrap" for MT8195 SoCs
 	"mediatek,mt8516-pwrap" for MT8516 SoCs
 - interrupts: IRQ for pwrap in SOC