arm: dts: k3-am64: Add support for ESM device nodes

Enable access to ESM0 configuration space and add Main ESM0 and MCU ESM
nodes to the AM64 device tree.

Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
diff --git a/arch/arm/dts/k3-am64.dtsi b/arch/arm/dts/k3-am64.dtsi
index de6805b..7aa94d5 100644
--- a/arch/arm/dts/k3-am64.dtsi
+++ b/arch/arm/dts/k3-am64.dtsi
@@ -64,6 +64,7 @@
 		#address-cells = <2>;
 		#size-cells = <2>;
 		ranges = <0x00 0x000f4000 0x00 0x000f4000 0x00 0x000002d0>, /* PINCTRL */
+			 <0x00 0x00420000 0x00 0x00420000 0x00 0x00001000>, /* ESM0 */
 			 <0x00 0x00600000 0x00 0x00600000 0x00 0x00001100>, /* GPIO */
 			 <0x00 0x00a40000 0x00 0x00a40000 0x00 0x00000800>, /* Timesync router */
 			 <0x00 0x01000000 0x00 0x01000000 0x00 0x02330400>, /* First peripheral window */