dt-bindings: display: novatek,nt36672a: Fix unevaluated properties warning

With 'unevaluatedProperties' support enabled, the novatek,nt36672a
binding has a new warning:

Documentation/devicetree/bindings/display/panel/novatek,nt36672a.example.dt.yaml: panel@0: Unevaluated properties are not allowed ('vddi0-supply', '#address-cells', '#size-cells' were unexpected)

Based on dts files, 'vddi0-supply' does appear to be the correct name.
Drop '#address-cells' and '#size-cells' which aren't needed.
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/20211221125125.1194554-1-robh@kernel.org

Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml

@@ -34,7 +34,7 @@ properties:
     description: phandle of gpio for reset line - This should be 8mA, gpio
       can be configured using mux, pinctrl, pinctrl-names (active high)
 
-  vddio-supply:
+  vddi0-supply:
     description: phandle of the regulator that provides the supply voltage
       Power IC supply
 
@@ -75,8 +75,6 @@ examples:
 
             reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
 
-            #address-cells = <1>;
-            #size-cells = <0>;
             port {
                 tianma_nt36672a_in_0: endpoint {
                     remote-endpoint = <&dsi0_out>;