arm64: dts: qcom: sc7280: Add EPSS L3 interconnect provider

Add Epoch Subsystem (EPSS) L3 interconnect provider node on SC7280
SoCs.
Signed-off-by: NOdelu Kukatla <okukatla@codeaurora.org>
Acked-by: NGeorgi Djakov <djakov@kernel.org>
Reviewed-by: NStephen Boyd <swboyd@chromium.org>
Signed-off-by: NBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1634812857-10676-4-git-send-email-okukatla@codeaurora.org

arch/arm64/boot/dts/qcom/sc7280.dtsi

@@ -4296,6 +4296,14 @@
 			};
 		};
 
+		epss_l3: interconnect@18590000 {
+			compatible = "qcom,sc7280-epss-l3";
+			reg = <0 0x18590000 0 0x1000>;
+			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
+			clock-names = "xo", "alternate";
+			#interconnect-cells = <1>;
+		};
+
 		cpufreq_hw: cpufreq@18591000 {
 			compatible = "qcom,cpufreq-epss";
 			reg = <0 0x18591000 0 0x1000>,