dt-bindings: clock: exynosautov920: add cpucl1/2 clock definitions

Add cpucl1 and cpucl2 clock definitions.

CPUCL1/2 refer to CPU Cluster 1 and CPU Cluster 2,
which provide clock support for the CPUs on Exynosauto V920 SoC.

Signed-off-by: Shin Son <shin.son@samsung.com>
Link: https://lore.kernel.org/r/20250428113517.426987-2-shin.son@samsung.com


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