schemas: legacy: extract MultiNodeID

This allows to remove some properties from 'Aggregate' schema which are
no longer needed, since there is now a more specific schema to use.

Tested: Schema Validator Pass

Change-Id: Ibb16fc166a7f587bd5d8f3442744a60b037526b9
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/schemas/global.json b/schemas/global.json
index f822413..985cb59 100644
--- a/schemas/global.json
+++ b/schemas/global.json
@@ -76,6 +76,9 @@
                             "$ref": "legacy.json#/$defs/Gpio"
                         },
                         {
+                            "$ref": "legacy.json#/$defs/MultiNodeID"
+                        },
+                        {
                             "$ref": "virtual_sensor.json#/$defs/VirtualSensor"
                         },
                         {
diff --git a/schemas/legacy.json b/schemas/legacy.json
index 444f339..cb7dec9 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -390,6 +390,23 @@
             "required": ["Name", "Type", "Index", "Direction", "Polarity"],
             "type": "object"
         },
+        "MultiNodeID": {
+            "additionalProperties": false,
+            "properties": {
+                "Name": {
+                    "$ref": "#/$defs/Types/Name"
+                },
+                "GpioPins": {
+                    "$ref": "#/$defs/Types/GpioPins"
+                },
+                "Type": {
+                    "type": "string",
+                    "const": "MultiNodeID"
+                }
+            },
+            "required": ["Name", "Type", "GpioPins"],
+            "type": "object"
+        },
         "Aggregate": {
             "description": "Don't add additional properties to this schema. Consult README.schema for instructions on adding new Exposes element sub-schema.",
             "additionalProperties": false,
@@ -456,9 +473,6 @@
                 "EntityInstance": {
                     "$ref": "#/$defs/Types/EntityInstance"
                 },
-                "GpioPins": {
-                    "$ref": "#/$defs/Types/GpioPins"
-                },
                 "Index": {
                     "$ref": "#/$defs/Types/Index"
                 },
@@ -876,7 +890,6 @@
                     "HostCpuUtilization",
                     "MB Upstream Port",
                     "DownstreamPort",
-                    "MultiNodeID",
                     "MultiNodePresence",
                     "PSUPresence",
                     "Intel HSBP CPLD",