arm64: dts: rockchip: remove dvs2 pinctrl from pmic on rk3399-sapphire

On the board DVS2 is disabled and not connected, see schematic, page 16.
Signed-off-by: Vicente Bergas <vicencb@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi

@@ -208,7 +208,7 @@ rk808: pmic@1b {
 		#clock-cells = <1>;
 		clock-output-names = "xin32k", "rk808-clkout2";
 		pinctrl-names = "default";
-		pinctrl-0 = <&pmic_int_l &pmic_dvs2>;
+		pinctrl-0 = <&pmic_int_l>;
 		rockchip,system-power-controller;
 		wakeup-source;
 
@@ -455,11 +455,6 @@ pmic_int_l: pmic-int-l {
 				<1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
 		};
 
-		pmic_dvs2: pmic-dvs2 {
-			rockchip,pins =
-				<1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_down>;
-		};
-
 		vsel1_gpio: vsel1-gpio {
 			rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
 		};