dt-bindings: leds: fix macro names for pca955x

The documentation reports the wrong macro names
related to the pca9532 instead of the pca955x
Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

Documentation/devicetree/bindings/leds/leds-pca955x.txt

@@ -26,9 +26,9 @@ LED sub-node properties:
 		from 0 to 15 for the pca9552
 		from 0 to  3 for the pca9553
 - type: (optional) either
-	PCA9532_TYPE_NONE
-	PCA9532_TYPE_LED
-	PCA9532_TYPE_GPIO
+	PCA955X_TYPE_NONE
+	PCA955X_TYPE_LED
+	PCA955X_TYPE_GPIO
 	see dt-bindings/leds/leds-pca955x.h (default to LED)
 - label : (optional)
 	see Documentation/devicetree/bindings/leds/common.txt