ARM: dts: imx51-babbage: fix esdhc cd/wp properties

The binding doc and dts use properties "fsl,{cd,wp}-internal" while
esdhc driver uses "fsl,{cd,wp}-controller".  Fix binding doc and dts
to get them match driver code.
Reported-by: NChris Ball <cjb@laptop.org>
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Cc: <stable@vger.kernel.org>
Acked-by: NChris Ball <cjb@laptop.org>

Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

@@ -10,8 +10,8 @@ Required properties:
 - compatible : Should be "fsl,<chip>-esdhc"
 
 Optional properties:
-- fsl,cd-internal : Indicate to use controller internal card detection
-- fsl,wp-internal : Indicate to use controller internal write protection
+- fsl,cd-controller : Indicate to use controller internal card detection
+- fsl,wp-controller : Indicate to use controller internal write protection
 
 Examples:
 
@@ -19,8 +19,8 @@ esdhc@70004000 {
 	compatible = "fsl,imx51-esdhc";
 	reg = <0x70004000 0x4000>;
 	interrupts = <1>;
-	fsl,cd-internal;
-	fsl,wp-internal;
+	fsl,cd-controller;
+	fsl,wp-controller;
 };
 
 esdhc@70008000 {

arch/arm/boot/dts/imx51-babbage.dts

@@ -25,8 +25,8 @@
 		aips@70000000 { /* aips-1 */
 			spba@70000000 {
 				esdhc@70004000 { /* ESDHC1 */
-					fsl,cd-internal;
-					fsl,wp-internal;
+					fsl,cd-controller;
+					fsl,wp-controller;
 					status = "okay";
 				};