ARM: dts: am57xx-beagle-x15: Switch GPIO fan number

BeagleBoard-X15 pre-production change includes switching the GPIO fan
gpio over from 1 to 2 to allow for a potential fix at a later point in
time for USB client VBUS detection using PMIC VBUS detect capability.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am57xx-beagle-x15.dts

@@ -84,7 +84,7 @@ led@3 {
 	gpio_fan: gpio_fan {
 		/* Based on 5v 500mA AFB02505HHB */
 		compatible = "gpio-fan";
-		gpios =  <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
+		gpios =  <&tps659038_gpio 2 GPIO_ACTIVE_HIGH>;
 		gpio-fan,speed-map = <0     0>,
 				     <13000 1>;
 		#cooling-cells = <2>;