arm64: dts: ti: k3-am625-sk: Add epwm nodes

Add epwm nodes and mark them disabled, as they're
not currently in use.
Signed-off-by: Georgi Vlaev <g-vlaev@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20220531205229.198011-3-g-vlaev@ti.com

arch/arm64/boot/dts/ti/k3-am625-sk.dts

@@ -502,3 +502,15 @@ &ecap2 {
 &main_mcan0 {
 	status = "disabled";
 };
+
+&epwm0 {
+	status = "disabled";
+};
+
+&epwm1 {
+	status = "disabled";
+};
+
+&epwm2 {
+	status = "disabled";
+};