The lastest version of edbg solves a double-reset issue that was
hindering testing (see #11125 and https://github.com/ataradov/edbg/issues/77)
It also adds support for SAMR34 and SAMR35, needed by @dylad for MCU
port.
update to the current lastest version of EDBG to allow user to reflash a bricked board due to sleep mode or wrong clock assignment. this avoid the use of Atmel Studio to erase flash.