Update stm32l496g_disco configuration to match with
default configuration guidelines:
-Deactivate features by default
-Configure available connectors
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Add configuration, pinmux, dts and documentation for the STM32L496G
Discovery board based on the STM32L496AG SoC.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>