arm64: dts: exynos: Remove clock from Exynos850 pmu_system_controller

As described in the corresponding binding documentation for
"samsung,exynos850-pmu", the "clocks" property should be used for
specifying CLKOUT mux inputs. Therefore, the clock provided to exynos850
pmu_system_controller is incorrect and should be removed. Instead of
making syscon regmap keep that clock running for PMU accesses, it should
be made always running in the clock driver, because the kernel is not
the only software accessing PMU registers on Exynos850 platform.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20230308233822.31180-8-semen.protsenko@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230612180102.289745-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Arnd Bergmann <arnd@arndb.de>