ARM: dts: sun8i: h3-beelink-x2: align HDMI CEC node names with dtschema

The bindings expect "cec" for HDMI CEC node.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20221204183341.139946-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>