Fix detach interrupt#161

Merged

oclyke merged 3 commits intorelease-candidatefrom

fix-detach-interrupt

May 5, 2020

Commits on May 5, 2020

back to 8-2018-q4-major compiler version
oclyke
committed
Update ap3_gpio.cpp
oclyke
committed
undo an accidental change
oclyke
committed