The Radxa ROCK 3C is a similar board to the
Radxa ROCK 3A with the Rockchip RK3566 SoC.
Add devicetree binding documentation for it.
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240428123618.72170-2-amadeus@jmu.edu.cnSigned-off-by: Heiko Stuebner <heiko@sntech.de>