The STM32F3DISCOVERY board would crash when setting GPIOA Pin_13 or
Pin_14 to analog mode so they are excluded in the gpio initialisation.
The USART GPIO configuration did not work when using the F10x code. The
USART status and DMA registers are different too.
what all i2c/spi drivers need to compile and what was unnecessarily
included
before.
Renamed printf_config.h into build_config.h, move SOFT_I2C toggle switch
to build_config.h.
clear what all altimeter drivers need to compile and what was
unnecessarily included before.
Moved some platform specific configuration from board.h into platform.h
