MAINTAINERS: samsung: Un-support cpuidle and clock drivers

Since few years no one is really paid to support drivers for Samsung
Exynos SoC CPU idle and clock controllers.  Correct the status to keep
them as maintained.

Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20230714050223.8327-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>