Add I2C support for STM32L0 series. LL-based driver was already in place, so I've just enable it. Signed-off-by: Ilya Tagunov <tagunil@gmail.com>
Add necessary kconfig and minimal device tree support for the stm32l072xz variants. Signed-off-by: Endre Karlson <endre.karlson@gmail.com>