ARM: dts: am571x-idk: Add Industrial input load trigger

The SN65HVS882 load trigger is attached to GPIO2_23 on the AM571x IDK.
Signed-off-by: NAndrew F. Davis <afd@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am571x-idk.dts

@@ -147,6 +147,10 @@
 	vbus-gpio = <&gpio7 22 GPIO_ACTIVE_HIGH>;
 };
 
+&sn65hvs882 {
+	load-gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
+};
+
 &mailbox5 {
 	status = "okay";
 	mbox_ipu1_ipc3x: mbox_ipu1_ipc3x {