arm64: dts: ti: k3-am654-base-board: Add I2C I/O expander

AM654 baseboard has two TCA9554 I/O expander on the WKUP_I2C0 bus.
The expander at address 0x38 is used to detect daughter cards.
Add a node for this I/O expander.
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Reviewed-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20230920053834.21399-1-r-gunasekaran@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-am654-base-board.dts

@@ -369,6 +369,13 @@ vdd_mpu: regulator@60 {
 		ti,enable-vout-discharge;
 	};
 
+	gpio@38 {
+		compatible = "nxp,pca9554";
+		reg = <0x38>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
 	pca9554: gpio@39 {
 		compatible = "nxp,pca9554";
 		reg = <0x39>;