Add needed uart pinctrl configuration in pinmux node.
Populate stm32 f1 based boards dts files with references
to uart pinctrl nodes
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add configuration, documentation, pinmux, fixup and dts support for
STM32F103x8 based Minimum System Development board.
Signed-off-by: Siddharth Chandrasekaran <siddharth@embedjournal.com>