STM32 uart Kconfig instance flags were not following
same naming scheme than other drivers (i2c, spi, ..)
Update driver to use UART_X instead of UART_STM32_PORT_X
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Enable USB on nucleo_f249zi.
Update clock to allow precise USB clock.
Tested on samples/subsys/usb/cdc_acm
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Enable and configure I2C1.
This configuration enables ready to use compatibility
with expansion shields based on Arduino type connectors
Additionally, fix comment on clock speed in board _defconfig
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>