py/vm: Adjust #if logic for gil_divisor so braces are balanced.
py/vm: Adjust #if logic for gil_divisor so braces are balanced.

Having balanced braces { and } makes it easier to navigate the function.

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