chore(lvglgdb): fix TypeError in lv_obj.py while dump specify object (#9375)

Signed-off-by: rongyichang <rongyichang@xiaomi.com>

scripts/gdb/lvglgdb/cmds/core/lv_obj.py

@@ -3,6 +3,7 @@ import gdb
 
 from lvglgdb.lvgl import curr_inst
 from lvglgdb.lvgl import LVObject, dump_obj_info
+from lvglgdb.value import Value
 
 
 class DumpObj(gdb.Command):
@@ -51,7 +52,7 @@ class DumpObj(gdb.Command):
 
         if args.root:
             root = gdb.parse_and_eval(args.root)
-            root = LVObject(root)
+            root = LVObject(Value(root))
             self.dump_obj(root, limit=args.level)
         else:
             # dump all displays