stm32/usbdev: Make USB device descriptors at runtime rather than static.
stm32/usbdev: Make USB device descriptors at runtime rather than static.

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