arm64: dts: rockchip: add pinctrl for mipi-pdn pin on px30-evb

Add right mux for mipi-pdn. Mux this pad as gpio2 14
Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
Link: https://lore.kernel.org/r/20220620161321.1898840-3-tommaso.merciai@amarulasolutions.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/px30-evb.dts

@@ -450,8 +450,8 @@ ov5695: ov5695@36 {
 		dvdd-supply = <&vcc1v5_dvp>;
 		dovdd-supply = <&vcc1v8_dvp>;
 		pinctrl-names = "default";
-		pinctrl-0 = <&cif_clkout_m0>;
 		reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
+		pinctrl-0 = <&cif_clkout_m0 &mipi_pdn>;
 
 		port {
 			ucam_out: endpoint {
@@ -544,6 +544,12 @@ cif_clkout_m0: cif-clkout-m0 {
 				<2 RK_PB3 1 &pcfg_pull_none_12ma>;
 		};
 	};
+
+	mipi {
+		mipi_pdn: mipi-pdn {
+			rockchip,pins = <2 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &pmu_io_domains {