ARM: dts: Fix node status to "okay" on TI boards

As per Device Tree Specification [1], the status parameter of nodes can
be "okay", "disabled", etc. "ok" is not a valid parameter.

U-boot Driver Model does not recognize status="ok" either and treats
the node as disabled.

[1] https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.3

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
diff --git a/arch/arm/dts/omap4-panda-common.dtsi b/arch/arm/dts/omap4-panda-common.dtsi
index 55ea8b6..c124b20 100644
--- a/arch/arm/dts/omap4-panda-common.dtsi
+++ b/arch/arm/dts/omap4-panda-common.dtsi
@@ -546,7 +546,7 @@
 };
 
 &dss {
-	status = "ok";
+	status = "okay";
 
 	port {
 		dpi_out: endpoint {
@@ -557,12 +557,12 @@
 };
 
 &dsi2 {
-	status = "ok";
+	status = "okay";
 	vdd-supply = <&vcxio>;
 };
 
 &hdmi {
-	status = "ok";
+	status = "okay";
 	vdda-supply = <&vdac>;
 
 	port {