arm64: dts: qcom: sm8450: Add LLCC/system-cache-controller node

Add a DT node for Last level cache (aka. system cache) controller
which provides control over the last level cache present on SM8450
SoC.
Signed-off-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Tested-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/7995d003b77d5e066658af5b2cfa22ccb40b6cf7.1643355594.git.quic_saipraka@quicinc.com

arch/arm64/boot/dts/qcom/sm8450.dtsi

@@ -1353,6 +1353,13 @@ gem_noc: interconnect@19100000 {
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+		system-cache-controller@19200000 {
+			compatible = "qcom,sm8450-llcc";
+			reg = <0 0x19200000 0 0x580000>, <0 0x19a00000 0 0x80000>;
+			reg-names = "llcc_base", "llcc_broadcast_base";
+			interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
 		ufs_mem_hc: ufshc@1d84000 {
 			compatible = "qcom,sm8450-ufshc", "qcom,ufshc",
 				     "jedec,ufs-2.0";