qemu-storage-daemon: Enable object-add

As we don't have a fully QAPIfied version of object-add yet and it still
has 'gen': false in the schema, it needs to be registered explicitly in
init_qmp_commands() to be available for users.

Fixes: 2af282ec51a27116d0402cab237b8970800f870c
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210204072137.19663-1-kwolf@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

storage-daemon/qemu-storage-daemon.c

@@ -144,6 +144,8 @@ static void init_qmp_commands(void)
     qmp_init_marshal(&qmp_commands);
     qmp_register_command(&qmp_commands, "query-qmp-schema",
                          qmp_query_qmp_schema, QCO_ALLOW_PRECONFIG);
+    qmp_register_command(&qmp_commands, "object-add", qmp_object_add,
+                         QCO_NO_OPTIONS);
 
     QTAILQ_INIT(&qmp_cap_negotiation_commands);
     qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",