dt-bindings: display: simple: add Rocktech RK043FN48H

Add compatible to panel-simple for Rocktech Displays Limited
RK043FN48H 4.3" 480x272 LCD-TFT panel.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230607063139.621351-5-dario.binacchi@amarulasolutions.com

Documentation/devicetree/bindings/display/panel/panel-simple.yaml

@@ -286,6 +286,8 @@ properties:
       - rocktech,rk101ii01d-ct
         # Rocktech Display Ltd. RK070ER9427 800(RGB)x480 TFT LCD panel
       - rocktech,rk070er9427
+        # Rocktech Display Ltd. RK043FN48H 4.3" 480x272 LCD-TFT panel
+      - rocktech,rk043fn48h
         # Samsung 13.3" FHD (1920x1080 pixels) eDP AMOLED panel
       - samsung,atna33xc20
         # Samsung 12.2" (2560x1600 pixels) TFT LCD panel