bsp/nxp/mcx/mcxe: Add MCX E247 and FRDM-MCXE247 support.

[imi415]

拉取/合并请求描述：(PR description)

[

为什么提交这份PR (why to submit this PR)

本PR添加MCXE247/FRDM-MCXE247支持。相关驱动已在 RT-Thread-packages/nxp-mcx-series#2 中合并。

This PR adds support for MCXE247/FRDM-MCXE247, required drivers for this BSP was merged in RT-Thread-packages/nxp-mcx-series#2.

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:
  • bsp/nxp/mcx/mcxe/frdm-mcxe247

• .config:
  • N/A

• 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: workflow

Reviewers: Rbb666 kurisaW supperthomas

Changed Files (Click to expand)

• .github/ALL_BSP_COMPILE.json

---

📊 Current Review Status (Last Updated: 2025-09-02 13:54 CST)

• ⌛ Rbb666 Pending Review
• ⌛ kurisaW Pending Review
• ⌛ supperthomas Pending Review

---

📝 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

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ℹ️ Refresh CI status operation requires repository Write permission.

[Rbb666]

@imi415 CI有个报错，请看下

[Copilot]

Pull Request Overview

This PR adds support for the NXP MCXE247 microcontroller and FRDM-MCXE247 development board to the RT-Thread BSP collection. The MCXE247 is a Cortex-M4 based microcontroller that extends RT-Thread support to NXP's MCX E series.

• Adds complete BSP structure for FRDM-MCXE247 board with all necessary configuration files
• Implements device drivers for UART, SPI, I2C, ADC, GPIO, WDT, and hardware timers
• Provides build system integration with SConstruct, SConscript, and Kconfig files

Reviewed Changes

Copilot reviewed 36 out of 36 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
bsp/nxp/mcx/mcxe/frdm-mcxe247/template.uvprojx	Keil μVision project template with incorrect device references
bsp/nxp/mcx/mcxe/frdm-mcxe247/template.uvoptx	Keil μVision project options with incorrect device references
bsp/nxp/mcx/mcxe/frdm-mcxe247/rtconfig.py	Build configuration for multiple toolchains (GCC, Keil, IAR)
bsp/nxp/mcx/mcxe/frdm-mcxe247/rtconfig.h	RT-Thread configuration header with peripheral settings
bsp/nxp/mcx/mcxe/frdm-mcxe247/board/linker_scripts/*	Memory layout scripts for different toolchains
bsp/nxp/mcx/mcxe/frdm-mcxe247/board/MCUX_Config/*	NXP MCUXpresso clock and pin configuration files
bsp/nxp/mcx/mcxe/frdm-mcxe247/applications/*	Sample application and RW007 WiFi module support
bsp/nxp/mcx/mcxe/Libraries/drivers/*	Device drivers for UART, SPI, and WDT peripherals

Comments suppressed due to low confidence (1)

bsp/nxp/mcx/mcxe/frdm-mcxe247/board/linker_scripts/MCXE247_flash.scf:1

• The comment states 'Multiply Factor is 28' but the actual value is set to 12, creating a mismatch between code and documentation.

#!armclang --target=arm-arm-none-eabi -mcpu=cortex-m4 -E -x c