qapi: Convert migrate_set_speed

Signed-off-by: Luiz Capitulino <[email protected]>
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 6ba694d..fdbed15 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -786,8 +786,7 @@
         .params     = "value",
         .help       = "set maximum speed (in bytes) for migrations. "
 	"Defaults to MB if no size suffix is specified, ie. B/K/M/G/T",
-        .user_print = monitor_user_noop,
-        .mhandler.cmd_new = do_migrate_set_speed,
+        .mhandler.cmd = hmp_migrate_set_speed,
     },
 
 STEXI