cpu/esp32: define ARDUINO_PIN_*

boards/common/esp32/include/arduino_board_common.h

boards/common/esp32/include/board_common.h

boards/esp32-mh-et-live-minikit/include/arduino_board.h

boards/esp32-mh-et-live-minikit/include/arduino_pinmap.h

boards/esp32-olimex-evb/include/arduino_board.h

boards/esp32-olimex-evb/include/arduino_pinmap.h

boards/esp32-wemos-lolin-d32-pro/include/arduino_board.h

boards/esp32-wemos-lolin-d32-pro/include/arduino_pinmap.h

boards/esp32-wroom-32/include/arduino_board.h

boards/esp32-wroom-32/include/arduino_pinmap.h

boards/esp32-wrover-kit/include/arduino_board.h

boards/esp32-wrover-kit/include/arduino_pinmap.h