Tools: DFG: Rename avr_interrupts to avr_io.
Tools: DFG: Add SPI Gpio to avr_io.
Tools: DFG: Better filtering of ResX bitfields.
Tools: DFG: Add sorted mmcu names.
Tools: DFG: Add gpios to drivers.
Peripheral: SPI: Add ATmega implementation.
Peripheral: Gpio: Add macro errors for missing registers.