minimal/Makefile: Explicitly include lib/utils/printf.c in build.
minimal/Makefile: Explicitly include lib/utils/printf.c in build.

The bare-metal port needs it and it's no longer included by default since
the Makefile now uses $(PY_CORE_O).

henriknelson/micropython,adafruit/circuitpython,tobbad/micropython,pozetroninc/micropython,tobbad/micropython,trezor/micropython,adafruit/micropython,bvernoux/micropython,adafruit/circuitpython,dmazzella/micropython,pozetroninc/micropython,pozetroninc/micropython,tralamazza/micropython,adafruit/micropython,pfalcon/micropython,tralamazza/micropython,selste/micropython,pozetroninc/micropython,dmazzella/micropython,kerneltask/micropython,henriknelson/micropython,bvernoux/micropython,ryannathans/micropython,pfalcon/micropython,tobbad/micropython,henriknelson/micropython,trezor/micropython,swegener/micropython,MrSurly/micropython,ryannathans/micropython,pozetroninc/micropython,adafruit/circuitpython,swegener/micropython,henriknelson/micropython,ryannathans/micropython,kerneltask/micropython,MrSurly/micropython,adafruit/micropython,selste/micropython,tobbad/micropython,tralamazza/micropython,pramasoul/micropython,tralamazza/micropython,selste/micropython,pfalcon/micropython,MrSurly/micropython,kerneltask/micropython,selste/micropython,pramasoul/micropython,henriknelson/micropython,adafruit/circuitpython,MrSurly/micropython,adafruit/micropython,kerneltask/micropython,trezor/micropython,kerneltask/micropython,ryannathans/micropython,swegener/micropython,adafruit/circuitpython,bvernoux/micropython,selste/micropython,pfalcon/micropython,dmazzella/micropython,trezor/micropython,pfalcon/micropython,swegener/micropython,tobbad/micropython,MrSurly/micropython,pramasoul/micropython,adafruit/micropython,ryannathans/micropython,pramasoul/micropython,swegener/micropython,adafruit/circuitpython,pramasoul/micropython,bvernoux/micropython,bvernoux/micropython,dmazzella/micropython,trezor/micropython