arm64: dts: rockchip: Enable PWM FAN for edgeble-neu6b

Add PWM FAN support for Edgeble Neu6B NCM IO board.
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Link: https://lore.kernel.org/r/20230713143941.1756849-6-jagan@edgeble.aiSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588-edgeble-neu6b-io.dts

@@ -49,6 +49,13 @@ hym8563_int: hym8563-int {
 	};
 };
 
+/* FAN */
+&pwm2 {
+	pinctrl-0 = <&pwm2m1_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
 &sata0 {
 	status = "okay";
 };