[bsp/hpm5300evk]: 修复readme中的描述问题

[supperthomas]

1.bsp中描述路径boards不存在，只有board，并且路径中会包含openocd，把openocd路径去掉
2. 运行openocd发现cmsis-dap.cfg异常，使用ft2232.cfg可以正常烧入，修改readme
3. 添加download.bat脚本，方便下载

拉取/合并请求描述：(PR description)

[

为什么提交这份PR (why to submit this PR)

修复readme中的描述异常

你的解决方案是什么 (what is your solution)

请提供验证的bsp和config (provide the config and bsp)

• BSP:hpm5300evk

• .config:

• action:

]

当前拉取/合并请求的状态 Intent for your PR

必须选择一项 Choose one (Mandatory):

• 本拉取/合并请求是一个草稿版本 This PR is for a code-review and is intended to get feedback
• 本拉取/合并请求是一个成熟版本 This PR is mature, and ready to be integrated into the repo

代码质量 Code Quality：

我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:

• 已经仔细查看过代码改动的对比 Already check the difference between PR and old code
• 代码风格正确，包括缩进空格，命名及其他风格 Style guide is adhered to, including spacing, naming and other styles
• 没有垃圾代码，代码尽量精简，不包含#if 0代码，不包含已经被注释了的代码 All redundant code is removed and cleaned up
• 所有变更均有原因及合理的，并且不会影响到其他软件组件代码或BSP All modifications are justified and not affect other components or BSP
• 对难懂代码均提供对应的注释 I've commented appropriately where code is tricky
• 代码是高质量的 Code in this PR is of high quality
• 已经使用formatting 等源码格式化工具确保格式符合RT-Thread代码规范 This PR complies with RT-Thread code specification
• 如果是新增bsp, 已经添加ci检查到.github/workflows/bsp_buildings.yml 详细请参考链接BSP自查

[Copilot]

Copilot reviewed 8 out of 9 changed files in this pull request and generated no comments.

Files not reviewed (1)

• bsp/hpmicro/hpm5300evk/download.bat: Language not supported

Comments suppressed due to low confidence (2)

bsp/hpmicro/hpm5300evk/README_zh.md:74

• Ensure that changing the directory from 'boards' to 'board' and updating the probe config file to 'ft2232.cfg' correctly reflects the actual file structure and configuration requirements.

%OPENOCD_HPMICRO%\openocd.exe -f board\debug_scripts\probes\ft2232.cfg -f board\debug_scripts\soc\hpm5300.cfg -f board\debug_scripts\boards\hpm5300evk.cfg -c "init; halt; flash write_image erase rtthread.elf; reset; shutdown"

bsp/hpmicro/hpm5300evk/README_zh.md:81

• Update the debug command to use the correct directory and configuration file so it is consistent with the flashing command.

%OPENOCD_HPMICRO%\openocd.exe -f board\debug_scripts\probes\ft2232.cfg -f board\debug_scripts\soc\hpm5300.cfg -f board\debug_scripts\boards\hpm5300evk.cfg