ARM: DTS: am43xx: Enable the DTS entries for USB port #2 in SPL

This is required to enable the USB port #2 in SPL when DM_USB is used.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
diff --git a/arch/arm/dts/am4372-u-boot.dtsi b/arch/arm/dts/am4372-u-boot.dtsi
index 0e6d41f..986ae17 100644
--- a/arch/arm/dts/am4372-u-boot.dtsi
+++ b/arch/arm/dts/am4372-u-boot.dtsi
@@ -45,3 +45,23 @@
 &ocp2scp0 {
 	u-boot,dm-spl;
 };
+
+&dwc3_2 {
+	u-boot,dm-spl;
+};
+
+&usb2 {
+	u-boot,dm-spl;
+};
+
+&usb2_phy2 {
+	u-boot,dm-spl;
+};
+
+&am43xx_control_usb2phy2 {
+	u-boot,dm-spl;
+};
+
+&ocp2scp1 {
+	u-boot,dm-spl;
+};