[fix] gd32: uart: add gd32vw553 series uart driver support

[zhang-haitao-repo]

• Add support for GD32VW55x series UART/USART peripherals
• 1. 解决GD32VW553 menuconfig配置UART1/2之后，会编译报错找不到USART1/2的问题；
• 2. 解决GD32VW553 执行menuconfig配置会出现实际硬件上不存在的UART3/4配置项的问题；
• 3. 在drv_uart.c/h中增加针对GD32VW553的端口复用配置，修复由于当前写死端口复用功能,导致gpio无法完整映射到UART1/2；
• 4. 修复由于中断名称错误，导致的GD32VW553 Uart1/2中断向量表未正确映射的问题；

拉取/合并请求描述：(PR description)

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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)

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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/ALL_BSP_COMPILE.json 详细请参考链接BSP自查

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