arm64: dts: mediatek: mt8365: drop incorrect power-domain-cells

The top SCPSYS node is not a power domain provider.  It's child
"power-controller" is instead.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240612092421.52917-1-krzysztof.kozlowski@linaro.orgSigned-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

arch/arm64/boot/dts/mediatek/mt8365.dtsi

@@ -302,7 +302,6 @@ syscfg_pctl: syscfg-pctl@10005000 {
 		scpsys: syscon@10006000 {
 			compatible = "mediatek,mt8365-syscfg", "syscon", "simple-mfd";
 			reg = <0 0x10006000 0 0x1000>;
-			#power-domain-cells = <1>;
 
 			/* System Power Manager */
 			spm: power-controller {