arm64: dts: qcom: sm8450: align PSCI domain names with DT schema

Bindings expect power domains to follow generic naming pattern:

  sm8450-qrd.dtb: psci: 'cpu-cluster0', 'cpu0', 'cpu1', 'cpu2', 'cpu3', 'cpu4', 'cpu5', 'cpu6',
    'cpu7' do not match any of the regexes: '^power-domain-', 'pinctrl-[0-9]+'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230102085452.10753-6-krzysztof.kozlowski@linaro.org