arm64: dts: qcom: sc8280xp: drop incorrect domain idle states properties

arm64: dts: qcom: sc8280xp: drop incorrect domain idle states properties

Domain idle states do not use 'idle-state-name':

  sc8280xp-crd.dtb: domain-idle-states: cluster-sleep-0: 'idle-state-name' does not match any of the regexes: 'pinctrl-[0-9]+'

Reported-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/all/20230323-topic-sm8450-upstream-dt-bindings-fixes-v1-4-3ead1e418fe4@linaro.org/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230324073813.22158-6-krzysztof.kozlowski@linaro.org