add mcxa346 hw timer test

[ZhangYiXiSucceed]

No description provided.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

👋 感谢您对 RT-Thread 的贡献！Thank you for your contribution to RT-Thread!

为确保代码符合 RT-Thread 的编码规范，请在你的仓库中执行以下步骤运行代码格式化工作流（如果格式化CI运行失败）。
To ensure your code complies with RT-Thread's coding style, please run the code formatting workflow by following the steps below (If the formatting of CI fails to run).

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🛠 操作步骤 | Steps

1. 前往 Actions 页面 | Go to the Actions page
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2. 点击 Run workflow | Click Run workflow

• 设置需排除的文件/目录（目录请以"/"结尾）
  Set files/directories to exclude (directories should end with "/")
• 将目标分支设置为 \ Set the target branch to：feature/frdm-mcxa346-hw-timer-test
• 设置PR number为 \ Set the PR number to：11023

3. 等待工作流完成 | Wait for the workflow to complete
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完成后，提交将自动更新至 feature/frdm-mcxa346-hw-timer-test 分支，关联的 Pull Request 也会同步更新。
Once completed, commits will be pushed to the feature/frdm-mcxa346-hw-timer-test branch automatically, and the related Pull Request will be updated.

如有问题欢迎联系我们，再次感谢您的贡献！💐
If you have any questions, feel free to reach out. Thanks again for your contribution!

[github-actions]

📌 Code Review Assignment

🏷️ Tag: bsp_mcxa

Reviewers: @hywing

Changed Files (Click to expand)

• bsp/nxp/mcx/mcxa/frdm-mcxa346/.config
• bsp/nxp/mcx/mcxa/frdm-mcxa346/applications/main.c
• bsp/nxp/mcx/mcxa/frdm-mcxa346/project.uvoptx
• bsp/nxp/mcx/mcxa/frdm-mcxa346/project.uvprojx
• bsp/nxp/mcx/mcxa/frdm-mcxa346/rtconfig.h
• bsp/nxp/mcx/mcxa/frdm-mcxa346/test_hwtimer.c

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📊 Current Review Status (Last Updated: 2025-12-06 13:40 CST)

• ⌛ @hywing Pending Review

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📝 Review Instructions

1. 维护者可以通过单击此处来刷新审查状态: 🔄 刷新状态
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3. PR合并前需至少一位维护者确认
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