configurations: yv4 sentinel dome: add interface

Add ManagedHost interface to yv4 sentinel dome, which will be
used by bmcweb for system discovery and other dbus operations.

Change-Id: I633722ccfa7d957d976ef7dc37fdda12df35d59e
Signed-off-by: Oliver Brewka <mox669.dev@gmail.com>
diff --git a/schemas/openbmc-dbus.json b/schemas/openbmc-dbus.json
index 75b4d74..24f71b9 100644
--- a/schemas/openbmc-dbus.json
+++ b/schemas/openbmc-dbus.json
@@ -59,6 +59,16 @@
                             "required": ["Names"],
                             "type": "object"
                         },
+                        "ManagedHost": {
+                            "additionalProperties": false,
+                            "properties": {
+                                "HostIndex": {
+                                    "type": ["string", "number"]
+                                }
+                            },
+                            "required": ["HostIndex"],
+                            "type": "object"
+                        },
                         "Replaceable": {
                             "additionalProperties": false,
                             "properties": {