ARM: shmobile: armadillo800eva dts: Replace status value "ok" by "okay"

While the DT parsing code recognizes "ok" as a valid value for the
"status" property, ePAPR v1.1 doesn't mention it in the list of valid
values.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7740-armadillo800eva.dts

@@ -172,7 +172,7 @@ &ether {
 	pinctrl-names = "default";
 
 	phy-handle = <&phy0>;
-	status = "ok";
+	status = "okay";
 
 	phy0: ethernet-phy@0 {
 		reg = <0>;
@@ -193,7 +193,7 @@ &cpg_clocks {
 };
 
 &cmt1 {
-	status = "ok";
+	status = "okay";
 };
 
 &i2c0 {