XML: Add AT90CAN* device file.
XML: Add ATmega16/32 device file.
XML: Add ATmega8 device file.
XML: Add ATmega64/128 device file.
XML: Add ATmega162 device file.
XML: Add ATmega165/325/645 device file.
XML: Add ATmega640/1280/2560 device file.
XML: Add ATmega1281/2561 device file.
XML: Add ATmega3250/6450 device file.
XML: Add ATmega3290/6490 device file.
XML: Add ATmega8515 device file.
XML: Add ATmega8535 device file.
XML: Add ATmega8/16/32u2 device file.
XML: Add ATmega16/32u4 device file.
XML: Add all supported ATtiny device files.
XML: Add ATxmega64/128/192/256a3 device files.
XML: Add ATxmega16/32/64/128a4 device files.
XML: Add ATxmega64/128/b1/3 device files.
XML: Add ATxmega16/32c4 device file.
XML: Add ATxmega64/128/192/256/384c3 device file.