dt-bindings: iio: tsl2772: add binding for avago,apds9930

This patch adds avago,apds9930 to the tsl2772 bindings.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/light/tsl2772.txt

@@ -13,6 +13,7 @@ Required properties:
 		"amstaos,tmd2672"
 		"amstaos,tsl2772"
 		"amstaos,tmd2772"
+		"avago,apds9930"
   - reg: the I2C address of the device
 
 Optional properties: