ARM: dts: exynos: simplify PMIC DVS pin configuration in Odroid XU

The pin configuration for PMIC DVS (pmic-dvs-2 and pmic-dvs-3) are
exactly the same, so merge them.
Signed-off-by: NKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220111201426.326777-5-krzysztof.kozlowski@canonical.com

arch/arm/boot/dts/exynos5410-odroidxu.dts

@@ -188,8 +188,7 @@
 		interrupt-parent = <&gpx0>;
 		interrupts = <4 IRQ_TYPE_NONE>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&max77802_irq>, <&pmic_dvs_1>, <&pmic_dvs_2>,
-			    <&pmic_dvs_3>;
+		pinctrl-0 = <&max77802_irq>, <&pmic_dvs_1>, <&pmic_dvs_2>;
 		wakeup-source;
 		#clock-cells = <1>;
 
@@ -563,15 +562,8 @@
 		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV4>;
 	};
 
-	pmic_dvs_3: pmic-dvs-3 {
-		samsung,pins = "gpx0-0";
-		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
-		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
-		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;
-	};
-
 	pmic_dvs_2: pmic-dvs-2 {
-		samsung,pins = "gpx0-1";
+		samsung,pins = "gpx0-0", "gpx0-1";
 		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 		samsung,pin-drv = <EXYNOS5420_PIN_DRV_LV1>;