schemas: legacy: Add Rearm property

This commit adds `Rearm` property to `Aggregate` as a property for
Chassis Intrusion Sensor. This is of type enum [Automatic, Manual] and
is the method of how the intrusion sensor is rearmed to normal state.

This property was defined in phosphor-dbus-interface [1].

Example:
{
   "Class": "Aspeed2600_Hwmon",
   "Name": "Chassis_Intrusion_Status",
   "Rearm": "Manual",
   "Type": "ChassisIntrusionSensor"
}

[1]: https://github.com/openbmc/phosphor-dbus-interfaces/blob/1abc0c57692b679753955b7273c1393369ef4987/yaml/xyz/openbmc_project/Chassis/Intrusion.interface.yaml#L12

Signed-off-by: Chau Ly <chaul@amperecomputing.com>
Change-Id: I7815b1e095832769c823177f96eae399eb379f90
diff --git a/schemas/legacy.json b/schemas/legacy.json
index 16fc605..1752c3b 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -204,6 +204,9 @@
                 "QMin": {
                     "$ref": "#/definitions/Types/QMin"
                 },
+                "Rearm": {
+                    "$ref": "#/definitions/Types/Rearm"
+                },
                 "RedundantCount": {
                     "$ref": "#/definitions/Types/RedundantCount"
                 },
@@ -898,6 +901,9 @@
             "QMin": {
                 "type": "number"
             },
+            "Rearm": {
+                "enum": ["Automatic", "Manual"]
+            },
             "RedundantCount": {
                 "type": "number"
             },