nrf5: Making i2c configurable from board configuration in case board has to sacrifice the i2c machine module.
nrf5: Making i2c configurable from board configuration in case board has to sacrifice the i2c machine module.

adafruit/circuitpython,adafruit/circuitpython,adafruit/micropython,tralamazza/micropython,tralamazza/micropython,adafruit/circuitpython,adafruit/micropython,adafruit/circuitpython,adafruit/micropython,tralamazza/micropython,adafruit/micropython,adafruit/circuitpython,adafruit/circuitpython,tralamazza/micropython,adafruit/micropython