【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>

【修改】为README.md开发文档修改了[Kendryte]为[Canaan Kendryte]描述
【修改】为README_zh.md开发文档修改了Hifive为sifive描述
【修改】为README_zh.md开发文档修改了[Kendryte]为[嘉楠Kendryte]描述

* [errno code]fix that use RT_ENOSYS without -

* Update bsp/airm2m/air32f103/libraries/rt_drivers/drv_hwtimer.c

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

* add uart6 support

* [ifx] add rw007 support

* [ifx] add spi6 support

* [ifx] fix rw007 cs pin

* [ifx] change default console to uart6

like:scons --dist --target=mdk5 --project-name=hello --project-path=C:\Users\xxx\Desktop\test
scons --dist [--target=xxx] [--project-name=xxx] [--project-path=xxx]
支持在dist之后，将dist出来的工程直接生成为目标工程，相当于自动执行scons --target=xxx

* add rtt sdio/flash/sdram driver

* formatting rtt drivers

* Add riscv_32e support

* add bl808 lp core

* update README.md

过时代码

* [mm] mmu operations should be wrapped by _aspace_bst_insert & _aspace_bst_remove to avoid competition on page table

* [lwp] may not return null on failed

Co-authored-by: flyingcys <flyingcys!163.com>

* [syscall] move sys_cacheflush to lwp_syscall.c

* [syscall] improve assertion

* [format] rename to rt_ctassert

* [debug] modified ct assertion on mm_page.c

* [libcpu/risc-v] support noncached normal memory

* [mm] check before dereference in _fetch_page

* [mm] add comments on ioremap

* [ioremap] report more info on failed

* [fix] reinsert should not suspend twice

* [mutex] fix prioceiling

* [mutex] fix prioceiling

* [timer] fix sys return value to avoid outdated errno

* [rtdef] add wrap to stringify

* [syscall] return value in rt errno should be recycle immediately after call to posix layer

* [syscall] return type of syscall should be long
errno should be recycle immediately after call to rt posix layer to avoid
outdated value

* [format] move prototype to header file

* [fix] futex definition conflict