Fix #19 by bumping ChibiOS and adding nano spec#20

andyshinn wants to merge 2 commits intovedderb:mainvedderb/vesc_bms_fw:mainfrom

andyshinn:ashinn/chibios-20-3-4andyshinn/vesc_bms_fw:ashinn/chibios-20-3-4Copy head branch name to clipboard