[bsp/hpm5300evk]: 修复readme中的描述问题 (#10187)

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

bsp/hpmicro/hpm5300evk/README_zh.md

@@ -71,14 +71,14 @@
 
 - 通过如下命令完成下载:
   ```console
-  %OPENOCD_HPMICRO%\openocd.exe -f boards\debug_scripts\probes\cmsis_dap.cfg -f boards\debug_scripts\soc\hpm5300.cfg -f boards\debug_scripts\boards\hpm5300evk.cfg -c "init; halt; flash write_image erase rtthread.elf; reset; shutdown"
+  %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"
   ```
 
 - 通过如下命令实现调试:
 
   - 通过 `OpenOCD` 来连接开发板:
 ```console
-%OPENOCD_HPMICRO%\openocd.exe -f boards\debug_scripts\probes\ft2232.cfg -f boards\debug_scripts\soc\hpm5300.cfg -f boards\debug_scripts\boards\hpm5300evk.cfg
+%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
 ```
   - 通过 `GDB` 实现调试:
 ```console

bsp/hpmicro/hpm5300evk/download.bat

@@ -0,0 +1 @@
+%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"