littlefs v2.11.2 for RT-Thread Latest

What's Changed

• 修复编译警告 by @dongly in #24
• feat:[littelfs]更新至V.2.11.2 by @wdfk-prog in #27
• fix:重复打开文件出错 by @wdfk-prog in #28

New Contributors

• @dongly made their first contribution in #24

Full Changelog: v2.9.3...v2.11.2