Current configuration was choosen to avoid colliding with existing ones
for i2c and uart, but others can be used.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Move all STM32 based board pinmux files into the board dirs so we are
consistent across all the STM32 platforms/boards.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>