mfd: arizona: Correct small errors in the DT binding documentation

This patch does not alter the binding at all it only brings the
documentation up to date with the existing binding.
Signed-off-by: NCharles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Documentation/devicetree/bindings/mfd/arizona.txt

@@ -5,9 +5,10 @@ of analogue I/O.
 
 Required properties:
 
-  - compatible : one of the following chip-specific strings:
-	"wlf,wm5102"
-	"wlf,wm5110"
+  - compatible : One of the following chip-specific strings:
+        "wlf,wm5102"
+        "wlf,wm5110"
+        "wlf,wm8997"
   - reg : I2C slave address when connected using I2C, chip select number when
     using SPI.
 
@@ -25,8 +26,9 @@ Required properties:
   - #gpio-cells : Must be 2. The first cell is the pin number and the
     second cell is used to specify optional parameters (currently unused).
 
-  - AVDD1-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply, CPVDD-supply,
-    SPKVDDL-supply, SPKVDDR-supply : power supplies for the device, as covered
+  - AVDD-supply, DBVDD1-supply, DBVDD2-supply, DBVDD3-supply (wm5102, wm5110),
+    CPVDD-supply, SPKVDDL-supply (wm5102, wm5110), SPKVDDR-supply (wm5102,
+    wm5110), SPKVDD-supply (wm8997) : Power supplies for the device, as covered
     in Documentation/devicetree/bindings/regulator/regulator.txt
 
 Optional properties:
@@ -46,6 +48,7 @@ codec: wm5102@1a {
 	compatible = "wlf,wm5102";
 	reg = <0x1a>;
 	interrupts = <347>;
+	interrupt-controller;
 	#interrupt-cells = <2>;
         interrupt-parent = <&gic>;
 
@@ -53,10 +56,10 @@ codec: wm5102@1a {
 	#gpio-cells = <2>;
 
 	wlf,gpio-defaults = <
-		0x00000000, /* AIF1TXLRCLK */
-		0xffffffff,
-		0xffffffff,
-		0xffffffff,
-		0xffffffff,
+		0x00000000 /* AIF1TXLRCLK */
+		0xffffffff
+		0xffffffff
+		0xffffffff
+		0xffffffff
 	>;
 };