tinyUSBboard specific patches for USBaspLoader firmware

In order to match the correct size requirements, this firmware
needs to be build with avr-gcc version 4.8.1

	avr-gcc (AVR_8_bit_GNU_Toolchain_3.4.3_1072) 4.8.1

Signed-off-by: Stephan Baerwolf <stephan.baerwolf@tu-ilmenau.de>