stm32/stm32_it: Include correct EXTI interrupt handlers for L0 MCUs.
stm32/stm32_it: Include correct EXTI interrupt handlers for L0 MCUs.

trezor/micropython,kerneltask/micropython,henriknelson/micropython,pramasoul/micropython,henriknelson/micropython,bvernoux/micropython,trezor/micropython,MrSurly/micropython,kerneltask/micropython,selste/micropython,trezor/micropython,bvernoux/micropython,tobbad/micropython,henriknelson/micropython,selste/micropython,pramasoul/micropython,pozetroninc/micropython,pramasoul/micropython,selste/micropython,MrSurly/micropython,bvernoux/micropython,tobbad/micropython,bvernoux/micropython,kerneltask/micropython,MrSurly/micropython,pozetroninc/micropython,henriknelson/micropython,adafruit/circuitpython,selste/micropython,pramasoul/micropython,henriknelson/micropython,adafruit/circuitpython,MrSurly/micropython,tobbad/micropython,MrSurly/micropython,selste/micropython,bvernoux/micropython,pozetroninc/micropython,adafruit/circuitpython,tobbad/micropython,pramasoul/micropython,kerneltask/micropython,kerneltask/micropython,trezor/micropython,pozetroninc/micropython,tobbad/micropython,adafruit/circuitpython,adafruit/circuitpython,trezor/micropython,pozetroninc/micropython,adafruit/circuitpython