dt-bindings: display: st7789v: add Inanbo T28CP45TN89

Add compatible value for Inanbo t28cp45tn89 and make reset GPIO non
mandatory, since it might not be connected to the CPU.
Reviewed-by: Michael Riesch <michael.riesch@wolfvision.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230714013756.1546769-3-sre@kernel.org

Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml

@@ -15,7 +15,9 @@ allOf:
 
 properties:
   compatible:
-    const: sitronix,st7789v
+    enum:
+      - inanbo,t28cp45tn89-v17
+      - sitronix,st7789v
 
   reg: true
   reset-gpios: true
@@ -33,7 +35,6 @@ properties:
 required:
   - compatible
   - reg
-  - reset-gpios
   - power-supply
 
 unevaluatedProperties: false