arm64: dts: qcom: sm6375: Add missing power-domain-named to CDSP

This was omitted when first introducing the node. Fix it.

Fixes: fe6fd26 ("arm64: dts: qcom: sm6375: Add ADSP&CDSP")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109135647.339224-5-konrad.dybcio@linaro.org

Author: konradybcio

arch/arm64/boot/dts/qcom/sm6375.dtsi

@@ -1209,6 +1209,7 @@
 			clock-names = "xo";
 
 			power-domains = <&rpmpd SM6375_VDDCX>;
+			power-domain-names = "cx";
 
 			memory-region = <&pil_cdsp_mem>;