2. Modify the return code to -1 when failed
3. Change the mounting filesystem from ramfs to sdcard
4. Replace RT_USING_RTGUI with PKG_USING_GUIENGINE and remove RT_USING_FTK

1、加入Kconfig以支持图形化菜单配置
2、编译脚本中添加动态模块编译参数
3、开启自动初始化机制支持
4、重构串口驱动以解决开启posix支持后终端无响应问题
5、解决dm9000网卡驱动link up问题
6、添加mnt.c文件用来挂载文件系统

修复USB不能正常识别composite设备的bug

fix bug in rt_realloc of mem.c,  which may cause memory leak

rt_realloc may cause <lfree> change, if we don't change <lfree> timely, it may cause memory leakage

[components/usb]Fixed a stack overflow bug

[stm32/driver] optimize uart driver

fix return type error of rt_strcasecmp: rt_uint32_t to rt_int32_t

Signed-off-by: Nlihui <leehui_hrbeu71102@163.com>

[tools] update eclipse tools version number.

[bsp/stm32] add support for NUCLEO-F410RB board;

[bsp/stm32] add the bsp of stm32l496zg-nucleo board

[drv_adc.c]Fixed ADC channel configuration bug for SMT32F0/L0/H7

drv_flash_f1.c support stm32f103vg

add STM32L1 HAL DRIVER

修复 scons --target=eclipse 时，部分带值宏出错的问题

Fixed typos in Kconfig

Aarch64 cache api

fixed a typo

1、【修改】返回值。

调整stm32_flash_erase的返回值

1、【修改】运算方式，更加简洁易懂；
2、【修正】代码格式 tab、 LOG_D；
3、【增加】返回值；
4、【去除】bank1_flag和bank2_flag，改用bank_size判定。