dt-bindings: remoteproc: qcom,sc8280xp-pas: Fix CDSP power desc

dt-bindings: remoteproc: qcom,sc8280xp-pas: Fix CDSP power desc

The power requirements for the CDSP instances on SC8280XP aren't fully
described, with only one of the three present. Fix that.

Fixes: ee651cd1e944 ("dt-bindings: remoteproc: qcom: pas: Add sc8280xp adsp and nsp pair")
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20251104-topic-8280_mxc-v1-2-df545af0ef94@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>