arm: dts: k3-j721e-mcu-wakeup: Introduce chipid node

Introduce a chipid node to provide a UCLASS_SOC driver to identify TI K3
SoCs.
Signed-off-by: NDave Gerlach <d-gerlach@ti.com>

arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi

@@ -211,3 +211,7 @@
 &mcu_fss0_ospi1_pins_default {
 	u-boot,dm-spl;
 };
+
+&chipid {
+	u-boot,dm-spl;
+};

arch/arm/dts/k3-j721e-mcu-wakeup.dtsi

@@ -316,4 +316,9 @@
 			ti,cpts-periodic-outputs = <2>;
 		};
 	};
+
+	chipid: chipid@43000014 {
+		compatible = "ti,am654-chipid";
+		reg = <0x0 0x43000014 0x0 0x4>;
+	};
 };