arm64: dts: qcom: sc7280: Add proxy interconnect requirements for modem

Add interconnects that are required to be proxy voted upon during modem
bootup on SC7280 SoCs.
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1652978825-5304-2-git-send-email-quic_sibis@quicinc.com

arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi

@@ -88,6 +88,7 @@ &remoteproc_mpss {
 	status = "okay";
 	compatible = "qcom,sc7280-mss-pil";
 	iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
+	interconnects = <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;
 	memory-region = <&mba_mem>, <&mpss_mem>;
 	firmware-name = "qcom/sc7280-herobrine/modem/mba.mbn",
 			"qcom/sc7280-herobrine/modem/qdsp6sw.mbn";