nrf5/modules: Added RTC into the machine module globals dict.
nrf5/modules: Added RTC into the machine module globals dict.

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