Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/powerpc/boot/dts/currituck.dts b/arch/powerpc/boot/dts/currituck.dts
index a04a4fc..b6d87b9 100644
--- a/arch/powerpc/boot/dts/currituck.dts
+++ b/arch/powerpc/boot/dts/currituck.dts
@@ -39,7 +39,7 @@
 			d-cache-size = <32768>;
 			dcr-controller;
 			dcr-access-method = "native";
-			status = "ok";
+			status = "okay";
 		};
 		cpu@1 {
 			device_type = "cpu";