dt-bindings: leds: aw200xx: Introduce optional enable-gpios property

Property 'enable-gpios' is optional, it can be used by the board
developer to connect AW200XX LED controller with appropriate 'enable'
GPIO pad.
Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231125200519.1750-4-ddrokosov@salutedevices.comSigned-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/leds/awinic,aw200xx.yaml

@@ -41,6 +41,9 @@ properties:
     description:
       Leds matrix size
 
+  enable-gpios:
+    maxItems: 1
+
 patternProperties:
   "^led@[0-9a-f]$":
     type: object
@@ -90,6 +93,7 @@ additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
     #include <dt-bindings/leds/common.h>
 
     i2c {
@@ -102,6 +106,7 @@ examples:
             #address-cells = <1>;
             #size-cells = <0>;
             awinic,display-rows = <3>;
+            enable-gpios = <&gpio 3 GPIO_ACTIVE_HIGH>;
 
             led@0 {
                 reg = <0x0>;