arm64: dts: mediatek: mt8395-nio-12l: Add power supplies for CPU/GPU scaling

Add the necessary power supplies to safely enable CPU and GPU frequency
scaling.

Link: https://lore.kernel.org/r/20240409114211.310462-6-angelogioacchino.delregno@collabora.comSigned-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts

@@ -140,6 +140,38 @@ apu_mem: memory@62000000 {
 	};
 };
 
+&cpu0 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu1 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu2 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu3 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&mt6315_6_vbuck1>;
+};
+
+&cpu5 {
+	cpu-supply = <&mt6315_6_vbuck1>;
+};
+
+&cpu6 {
+	cpu-supply = <&mt6315_6_vbuck1>;
+};
+
+&cpu7 {
+	cpu-supply = <&mt6315_6_vbuck1>;
+};
+
 &eth {
 	phy-mode = "rgmii-rxid";
 	phy-handle = <&rgmii_phy>;
@@ -343,6 +375,14 @@ typec_con_mux: endpoint {
 	};
 };
 
+&mfg0 {
+	domain-supply = <&mt6315_7_vbuck1>;
+};
+
+&mfg1 {
+	domain-supply = <&mt6359_vsram_others_ldo_reg>;
+};
+
 /* MMC0 Controller: eMMC (HS400). Power lines are shared with UFS! */
 &mmc0 {
 	pinctrl-names = "default", "state_uhs";