ARM: dts: rockchip: correct gpio-keys properties on rk3288-tinker

gpio-keys children do not use unit addresses.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220616005333.18491-28-krzysztof.kozlowski@linaro.org


Signed-off-by: Heiko Stuebner <heiko@sntech.de>