Add mount-point type (#1168)

* add mount-point type

release/models/system/openconfig-system.yang

@@ -47,7 +47,13 @@ module openconfig-system {
     Section 4.c of the IETF Trust's Legal Provisions Relating
     to IETF Documents (http://trustee.ietf.org/license-info).";
 
-  oc-ext:openconfig-version "2.2.0";
+  oc-ext:openconfig-version "2.3.0";
+
+  revision "2024-09-24" {
+    description
+      "Added mount-point type leaf to describe the type of file system.";
+    reference "2.3.0";
+  }
 
   revision "2024-08-13" {
     description
@@ -420,6 +426,14 @@ module openconfig-system {
       description
         "The amount of space currently in use on the filesystem.";
     }
+
+    leaf type {
+      type string;
+      description
+        "A human readable string indicating the filesystem type used
+        for storage.  Examples might include flash, hard disk, tmpfs/ramdisk
+        or remote/network based storage.";
+    }
   }
 
   grouping system-global-state {