nrf5: Adding i2c class to machine module globals table.
nrf5: Adding i2c class to machine module globals table.

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