dt-bindings: display: novatek,nt36672a: correct VDDIO supply

The nt36672a bindings were added with a mistake on VDDIO supply calling
it in one place vddio and in other vddi0.  Typical name is rather vddio
which is also now used by DTS (sdm845-xiaomi-beryllium-common.dtsi) and
Linux driver.

Fixes: c2abcf30 ("dt-bindings: display: novatek,nt36672a: Fix unevaluated properties warning")
Fixes: 9528a024 ("dt-bindings: display: panel: Add bindings for Novatek nt36672a")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230326155425.91181-2-krzysztof.kozlowski@linaro.orgSigned-off-by: Rob Herring <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)
 
-  vddi0-supply:
+  vddio-supply:
     description: phandle of the regulator that provides the supply voltage
       Power IC supply
 
@@ -51,7 +51,7 @@ properties:
 required:
   - compatible
   - reg
-  - vddi0-supply
+  - vddio-supply
   - vddpos-supply
   - vddneg-supply
   - reset-gpios
@@ -70,7 +70,7 @@ examples:
         panel@0 {
             compatible = "tianma,fhd-video", "novatek,nt36672a";
             reg = <0>;
-            vddi0-supply = <&vreg_l14a_1p88>;
+            vddio-supply = <&vreg_l14a_1p88>;
             vddpos-supply = <&lab>;
             vddneg-supply = <&ibb>;