[DeviceDriver] Update SFUD to latest version V1.0.1.

[Finsh] Fix finsh password auth not valid when RT_DEBUG is not define

[DeviceDrivers] drivers CAN change tx completion to sem

[bsp] fix the serial output issue because GPIO_Configuration in stm32f40x.

STM32F4系列UART在初始化的时候，如果GPIO_AF放到GPIO_INIT后边，系统复位后，串口会向外发送一个字节的数据，通常是0x00。将GPIO_AF放到GPIO_INIT前边可以避开这个问题。

Add RT_USED definition for IAR

[BSP] Add EMAC driver in loongson1C (ported by chinesebear, https://github.com/chinesebear/rtt-net)

[libcpu] update cortex-m libcpu: fixed compile error.

x86: bring up share object module on i386 machine

1. upddate kernel module to support i386
2. update libdl to support open *.so by absolute path
3. new test case bsp/x86/src/hello.c to test i386 module feature
Signed-off-by: Nparai <parai@foxmail.com>

[lwIP] Fix LwIP 2.0.2 tftp

[Device Drivers] delete an useless %s.

Fix ibc armlibc

[bsp] x86 : fix keyboard input issue

[lwIP] Fix netutils

Signed-off-by: NParai Wang <parai@foxmail.com>

[libcpu] Update cortex m port

[BSP] x86: add floppy driver