arm64: dts: rockchip: add Quartz64-A fan pinctrl

The Quartz64 Model A fan is bound to a single gpio. Prevent pinctrl
issues in the future by binding the pinctrl assignment for the gpio.
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220511150117.113070-5-pgwipeout@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts

@@ -32,6 +32,8 @@ fan: gpio_fan {
 		gpios = <&gpio0 RK_PD5 GPIO_ACTIVE_HIGH>;
 		gpio-fan,speed-map = <0    0
 				      4500 1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&fan_en_h>;
 		#cooling-cells = <2>;
 	};
 
@@ -524,6 +526,12 @@ bt_wake_l: bt-wake-l {
 		};
 	};
 
+	fan {
+		fan_en_h: fan-en-h {
+			rockchip,pins = <0 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	leds {
 		work_led_enable_h: work-led-enable-h {
 			rockchip,pins = <0 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;