clk: samsung: Use single CPU clock notifier callback for all chips

Reduce the code duplication by making all chips use a single version of
exynos_cpuclk_notifier_cb() function. That will prevent the code bloat
when adding new chips support too.

Also don't pass base address to pre/post rate change functions, as it
can be easily derived from already passed cpuclk param.

No functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20240224202053.25313-6-semen.protsenko@linaro.org


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