when using stime set rtc time, tv.tv_usec not 0,but always is 0xdeadbeef, make set time error

[bsp][k210] add drv_i2c.c for i2c-tools, and use ascii code instead of special character in drv_io_config.c

temporarily use sys_stat. should be replaced by sys_lstat if symbolic link are implemented

* Revert safety MMU initialization.
Co-authored-by: NWayne Lin <wclin@nuvoton.com>

* [bsp][bouffalo_lab]add drv_adc

* Update bsp/bouffalo_lab/libraries/rt_drivers/Kconfig
Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>

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Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>

* [utest][atomic]添加返回值测试

* [utest/mm] add testcase for create/init
format codes of create/init in components/mm

* [libcpu/aarch64] fix user stack check routine

* [kservice] export API for utest

* [utest/mm] testcase for aspace_map
format & modify the files under components/mm related with aspace_map

* [lwp/user_mm] add user_map_varea for mmap feature

* [mm] rename rt_mm_fault_try_fix to rt_aspace_fault_try_fix

* [utest/mm] testcase for synchronization

* [mm] modify unmap api to improve throughput

* [utest/mm] testcases for cache and varea map

* [format] remove extra space

* [utest/mm] fix testcase problem in header

* [lwp] extend map_user_varea with a flag

* [utest/mm] testcase for lwp_map_user_varea

* [libcpu/arm/cortex-a] fix kernel space layout

* [utest/mm] adjust for armv7 arch

* fix rt_hw_interrupt_install return value

* add __rt_rvstack

* [bsp] rpi 4b smart & rtos fixups

* [format] remove spaces & modify readme

* [bsp] update rpi4b readme

* update bl_mcu_sdk SConscript && add bl808 uart2 driver

* add bl60x/bl70x bsp to ci-action

* [components/drivers][touch]删除多余的touch.h

* 将touc.h替换为rtdevice.h

【修改】为README.md开发文档修改了Hifive为sifive描述

* Update Kconfig
* Update trap_gcc.S
* Update bsp/hifive1/drivers/SConscript
Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>
* Update SConscript
* [atomic]提交一份arm与risc-v架构下的常用原子操作函数
* 修改变量类型
* 更新rtatomic.h与atomic_port.c
* 更新rt-thread\libcpu\arm\common\atomic_port.c
* 更新include/rtatomic.h与libcpu/arm/common/SConscript
* 更新include/rtatomic.h
* 修正格式与Kconfig
* 修正格式与文件结构

* 规范文件格式与文件重命名
* 添加测试用例与CI
* 添加函数声明
* 修改virt64/SConscript 添加atomic_riscv.c
  * 1.规范代码风格
  * 2.添加RISC-V64原子指令支持 解决在RV64下编译器将32-bit运算结果扩展为64-bit 导致判断错误
* 添加C11标准库原子操作测试

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Co-authored-by: Man, Jianting (Meco) <920369182@qq.com>