Merge pull request #5451 from mali/uno

boards/arduino-common/Makefile

boards/arduino-common/Makefile.features

boards/arduino-common/Makefile.include

boards/arduino-common/board.c

boards/arduino-common/dist/debug.sh

boards/arduino-common/dist/debug_srv.sh

boards/arduino-common/dist/gdb.conf

boards/arduino-common/include/arduino_board.h

boards/arduino-common/include/arduino_pinmap.h

boards/arduino-common/include/board.h

boards/arduino-common/include/periph_conf.h

boards/arduino-duemilanove/Makefile

boards/arduino-duemilanove/Makefile.features

boards/arduino-duemilanove/Makefile.include

boards/arduino-uno/Makefile

boards/arduino-uno/Makefile.features

boards/arduino-uno/Makefile.include

cpu/atmega328p/Makefile

cpu/atmega328p/Makefile.include

cpu/atmega328p/cpu.c