arm64: dts: rockchip: mark system power controller and fix typo on orangepi-5-plus

Mark the PMIC as system power controller, so the board will shut-down
properly and fix the typo on rk806_dvs1_null pins property.

Fixes: 236d225e ("arm64: dts: rockchip: Add board device tree for rk3588-orangepi-5-plus")
Signed-off-by: Muhammed Efe Cetin <efectn@protonmail.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/20240407173210.372585-1-efectn@6tel.netSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588-orangepi-5-plus.dts

@@ -485,6 +485,7 @@ pmic@0 {
 		pinctrl-0 = <&pmic_pins>, <&rk806_dvs1_null>,
 			    <&rk806_dvs2_null>, <&rk806_dvs3_null>;
 		spi-max-frequency = <1000000>;
+		system-power-controller;
 
 		vcc1-supply = <&vcc5v0_sys>;
 		vcc2-supply = <&vcc5v0_sys>;
@@ -506,7 +507,7 @@ pmic@0 {
 		#gpio-cells = <2>;
 
 		rk806_dvs1_null: dvs1-null-pins {
-			pins = "gpio_pwrctrl2";
+			pins = "gpio_pwrctrl1";
 			function = "pin_fun0";
 		};