drivers: pinmux: stm32: Complete STM32F0 series
drivers: pinmux: stm32: Complete STM32F0 series

Fix some wrong assignments for SPI2 and add all other alternative
functions for USART, I2C, SPI and CAN according to STM32F091VC
datasheet, which is at the top end of this series.

https://www.st.com/resource/en/datasheet/stm32f091vc.pdf

Signed-off-by: Martin Jäger <54669547a225ff20cba8b75a4adca540eef25858@libre.solar>

nashif/zephyr,zephyrproject-rtos/zephyr,nashif/zephyr,nashif/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,Vudentz/zephyr,finikorg/zephyr,Vudentz/zephyr,nashif/zephyr,galak/zephyr,Vudentz/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,nashif/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,Vudentz/zephyr,Vudentz/zephyr