dt-bindings: display: panel-simple: Add On Tat Industrial Company KD50G21-40NT-A1

dt-bindings: display: panel-simple: Add On Tat Industrial Company KD50G21-40NT-A1

Document On Tat Industrial Company KD50G21-40NT-A1 5" WVGA TFT LCD panel.

The LCD module specification can be found at:
https://cdn-shop.adafruit.com/datasheets/KD50G21-40NT-A1.pdf

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240816085004.491494-2-victor.liu@nxp.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240816085004.491494-2-victor.liu@nxp.com