arm64: dts: qcom: qdu1000: Fix qcom,freq-domain

The correct property name is 'qcom,freq-domain', not
'qcom,freq-domains'.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250410-dt-cpu-schema-v2-4-63d7dc9ddd0a@kernel.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>