spi: dt-bindings: socionext,uniphier: drop address/size-cells

Remove address/size-cells because they are already mentioned by common
spi-controller.yaml.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230601095908.563865-3-krzysztof.kozlowski@linaro.orgSigned-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/spi/socionext,uniphier-spi.yaml

@@ -17,9 +17,6 @@ allOf:
   - $ref: spi-controller.yaml#
 
 properties:
-  "#address-cells": true
-  "#size-cells": true
-
   compatible:
     const: socionext,uniphier-scssi