arm64: dts: qcom: msm8996: add xo clock source to rpmcc

Add XO clock source to the RPM clock controller.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220620071936.1558906-5-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/msm8996.dtsi

@@ -464,6 +464,8 @@ rpm_requests: rpm-requests {
 			rpmcc: qcom,rpmcc {
 				compatible = "qcom,rpmcc-msm8996", "qcom,rpmcc";
 				#clock-cells = <1>;
+				clocks = <&xo_board>;
+				clock-names = "xo";
 			};
 
 			rpmpd: power-controller {