STM32F0-Discovery (STM32F051R8) initial port
Merge pull request #223 from dinau/stm32-discov-f051_initial

STM32F0-Discovery (STM32F051R8) initial port
[STM32F407][LPC4088][GCC_ARM] Fixed compilation error.
This commit fix FPU error when compile with RTX OS.
Merge pull request #224 from dinau/stm32f407-change-led-def

[STM32F407][LPC4088][GCC_ARM] Fixed compilation error.