[bsp][renesas]add ra2a1 drvices

[CYFS3]

拉取/合并请求描述：(PR description)

[

为什么提交这份PR (why to submit this PR)

添加spi、i2c、 sci和pwm,均在板端验证过没问题。

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:

• .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/ALL_BSP_COMPILE.json 详细请参考链接BSP自查

[github-actions]

📌 Code Review Assignment

🏷️ Tag: bsp_renesas

Reviewers: kurisaW

Changed Files (Click to expand)

• bsp/renesas/ra2a1-ek/board/Kconfig

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📊 Current Review Status (Last Updated: 2025-09-10 15:51 CST)

• ✅ kurisaW Reviewed On 2025-09-10 15:29 CST

---

📝 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
   Maintainers can refresh the review status by clicking here: 🔄 Refresh Status

2. 确认审核通过后评论 LGTM/lgtm
   Comment LGTM/lgtm after confirming approval

3. PR合并前需至少一位维护者确认
   PR must be confirmed by at least one maintainer before merging

ℹ️ 刷新CI状态操作需要具备仓库写入权限。
ℹ️ Refresh CI status operation requires repository Write permission.

[Copilot]

Pull Request Overview

This PR adds hardware peripheral drivers configuration for the Renesas RA2A1-EK BSP, including support for SCI (Serial Communication Interface), I2C, PWM, and SPI controllers.

• Adds SCI controller configuration with support for SPI, I2C, and UART modes across multiple channels (SCI0, SCI1, SCI9)
• Introduces hardware I2C bus configuration for I2C0 and I2C1 controllers
• Implements PWM configuration for GPT0-GPT6 timers with 32-bit output capability
• Adds dedicated SPI bus configuration for SPI0 and SPI1 controllers

[Copilot]

[spelling]: Extra trailing whitespace detected / 检测到多余的尾随空白字符

English: There are trailing spaces on this otherwise empty line. Please remove the trailing whitespace to maintain clean code formatting.
中文：这个空行包含了尾随空格。请移除尾随空白字符以保持代码格式的整洁。

Suggested change

[Copilot]

[spelling]: Extra trailing whitespace detected / 检测到多余的尾随空白字符

English: There are trailing spaces on this otherwise empty line. Please remove the trailing whitespace to maintain clean code formatting.
中文：这个空行包含了尾随空格。请移除尾随空白字符以保持代码格式的整洁。

Suggested change

[Copilot]

[spelling]: Extra trailing whitespace detected / 检测到多余的尾随空白字符

English: There are trailing spaces on this otherwise empty line. Please remove the trailing whitespace to maintain clean code formatting.
中文：这个空行包含了尾随空格。请移除尾随空白字符以保持代码格式的整洁。

Suggested change

[Copilot]

[spelling]: Extra trailing whitespace detected / 检测到多余的尾随空白字符

English: There is a trailing space after "BSP_USING_SPI". Please remove the trailing whitespace to maintain clean code formatting.
中文：在"BSP_USING_SPI"后面有尾随空格。请移除尾随空白字符以保持代码格式的整洁。

Suggested change

	if BSP_USING_SPI
	if BSP_USING_SPI

[Rbb666]

@CYFS3 AI提出的一些格式化建议麻烦进行修改

[kurisaW]

LGTM

[CYFS3]

@CYFS3 AI提出的一些格式化建议麻烦进行修改

已经修改