Add ATmega8 and fix some minor bugs with program-avr-spi applet#736

whitequark merged 2 commits intoGlasgowEmbedded:mainGlasgowEmbedded/glasgow:mainfrom

turmoni:fix_avr_error_and_add_atmega8turmoni/glasgow:fix_avr_error_and_add_atmega8Copy head branch name to clipboard