~ruther/avr-device

ref: 93330ace8cd87db2f65c7a6f81bf7ff2ecbc86bd avr-device/patch d---------
c15bfe54 — octycs 6 years ago 
Integrate patching in the build process
c7d56808 — octycs 6 years ago 
Integrate svdpatch.py of stm32-rs