arm64: dts: rockchip: correct gpio_pwrctrl1 typo on rock-5b

Both rk806_dvs1_null and rk806_dvs2_null duplicate gpio_pwrctrl2 and
gpio_pwrctrl1 is not set. This patch sets gpio_pwrctrl1.
Signed-off-by: John Clark <inindev@gmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20231225222859.17153-2-inindev@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts

@@ -448,7 +448,7 @@ pmic@0 {
 		#gpio-cells = <2>;
 
 		rk806_dvs1_null: dvs1-null-pins {
-			pins = "gpio_pwrctrl2";
+			pins = "gpio_pwrctrl1";
 			function = "pin_fun0";
 		};