ARM: dts: am43x-epos-evm: Add the am438 compatible string

The SoCs on am43x-epos-evm are named am438x.
Hence add the compatibility string and remove the am4372 string.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Documentation/devicetree/bindings/arm/omap/omap.txt

@@ -154,7 +154,7 @@ Boards:
   compatible = "compulab,am437x-sbc-t43", "compulab,am437x-cm-t43", "ti,am4372", "ti,am43"
 
 - AM43x EPOS EVM
-  compatible = "ti,am43x-epos-evm", "ti,am4372", "ti,am43"
+  compatible = "ti,am43x-epos-evm", "ti,am43", "ti,am438x"
 
 - AM437x GP EVM
   compatible = "ti,am437x-gp-evm", "ti,am4372", "ti,am43"

arch/arm/boot/dts/am43x-epos-evm.dts

@@ -18,7 +18,7 @@
 
 / {
 	model = "TI AM43x EPOS EVM";
-	compatible = "ti,am43x-epos-evm","ti,am4372","ti,am43";
+	compatible = "ti,am43x-epos-evm","ti,am438x","ti,am43";
 
 	aliases {
 		display0 = &lcd0;