qapi: Convert query-commands

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
diff --git a/qmp-commands.hx b/qmp-commands.hx
index dfc02af..0fda5c3 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -1090,6 +1090,12 @@
 
 EQMP
 
+    {
+        .name       = "query-commands",
+        .args_type  = "",
+        .mhandler.cmd_new = qmp_marshal_input_query_commands,
+    },
+
 SQMP
 query-chardev
 -------------