Revert "arm64: dts: qcom: sm8250: Disable the not yet supported cluster idle state"

Due to recent improvements of the cluster idle state support for Qcom based
platforms, we are now able to support the deepest cluster idle state. Let's
therefore revert the earlier workaround.

This reverts commit cadaa773 ("arm64: dts: qcom: sm8250: Disable the
not yet supported cluster idle state"), which is available from v6.1-rc6.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221122123713.65631-1-ulf.hansson@linaro.org