dt-bindings: interconnect: add interconnect bindings for SDXLEMUR

Add interconnect device bindings. These devices can be used to
describe any RPMH and NoC based interconnect devices.

Change-Id: Ice8cf23e6fc6251addd2976ee8acd95eb2c88c2d

bindings/interconnect/qcom,sdxlemur.txt

@@ -0,0 +1,23 @@
+Qualcomm Technologies, Inc. SDXLEMUR Network-On-Chip interconnect driver binding
+--------------------------------------------------------------------------------
+
+SDXLEMUR interconnect providers support system bandwidth requirements through
+RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
+able to communicate with the BCM through the Resource State Coordinator (RSC)
+associated with each execution environment. Provider nodes must point to at
+least one RPMh device child node pertaining to their RSC and each provider
+can map to multiple RPMh resources.
+
+Required properties :
+- compatible : shall contain only one of the following:
+			"qcom,sdxlemur-system_noc",
+			"qcom,sdxlemur-mem_noc",
+			"qcom,sdxlemur-mc_virt",
+- #interconnect-cells : should contain 1
+
+Examples:
+
+system_noc: interconnect@1620000 {
+	compatible = "qcom,sdxlemur-system_noc";
+	interconnect-cells = <1>;
+};