clk: samsung: exynos990: Add CMU_PERIS block

clk: samsung: exynos990: Add CMU_PERIS block

The CMU_PERIS block is used for clocking the MCT, and has one dependency
clock from CMU_TOP. As the MCT is initialized early, this CMU is also
registered early.

While at it, make the parent clock list comment spaced out correctly,
and add it to the HSI0 block.

Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
Link: https://lore.kernel.org/r/20250104-exynos990-cmu-v1-2-9f54d69286d6@mentallysanemainliners.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>