Serial port on the nRF52840 Dongle

Hi I am trying to init the serial on the nRF52840 Dongle but there are some defines missing in the boards/pca10069.h

I run this on the nRF52840 DK and it works fine.

NRF_SERIAL_DRV_UART_CONFIG_DEF(m_uart0_drv_config,
    RX_PIN_NUMBER, TX_PIN_NUMBER,
    RTS_PIN_NUMBER, CTS_PIN_NUMBER,
    NRF_UART_HWFC_ENABLED, NRF_UART_PARITY_EXCLUDED,
    NRF_UART_BAUDRATE_115200,
    UART_DEFAULT_CONFIG_IRQ_PRIORITY);

file: boards/pca10056.h

#define RX_PIN_NUMBER  8
#define TX_PIN_NUMBER  6
#define CTS_PIN_NUMBER 7
#define RTS_PIN_NUMBER 5
#define HWFC           true