dt-bindings: mfd: maxim,max77693: Add USB connector

Add micro-USB connector to properly represent the hardware.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230723070715.34650-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Lee Jones <lee@kernel.org>

Documentation/devicetree/bindings/mfd/maxim,max77693.yaml

@@ -31,6 +31,10 @@ properties:
   charger:
     $ref: /schemas/power/supply/maxim,max77693.yaml
 
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+    unevaluatedProperties: false
+
   led:
     $ref: /schemas/leds/maxim,max77693.yaml