Merge pull request #308 from aozima/pulls

[DeviceDrivers] Add more SPI drivers.
[DFS] make comments cleanup.
Merge branch 'master' of https://github.com/RT-Thread/rt-thread
[DeviceDrivers] Fix compiling warning.
[libc] Use __SIZE_TYPE__ instead of rt_size_t in minilibc.
[libc] Fix system issue when use msh and make code cleanup.
[DeviceDrivers] Add modification under Linux
Update keil.py

clear old groups in template.uvproj.
correct spelling error
correct spelling error
Merge pull request #310 from hduffddybz/develop

correct spelling error
[BSP]BM9BF618S:Fix timer initialization issue
[BSP]BM9BF618S:fix timer initialization issue.
test
[BSP]BM9BF618S:Fix timer initialization issue。
[BSP]BM9BF618S:fix timer initialization issue.
ls1bdev: add uart3 support
ls1bdev: don't hardcode the uart base address in rt_hw_console_output
ls1bdev: init application after other things initialized
ls1bdev: format code in startup.c