Update submodule devices to latest Wed Mar 17 00:38:33 UTC 2021
Update submodule devices to latest Wed Mar 17 00:38:33 UTC 2021

    - devices in PX4/Firmware (dd479f9cca353ac3f53bc0e36195cd1358b01f5a): https://github.com/PX4/PX4-GPSDrivers/commit/d7100ddc3dfdbe9702d0d21542a9ca3f4ea42652
    - devices current upstream: https://github.com/PX4/PX4-GPSDrivers/commit/0acaf6185245382389f7f6019cee6537d8f5a8e6
    - Changes: https://github.com/PX4/PX4-GPSDrivers/compare/d7100ddc3dfdbe9702d0d21542a9ca3f4ea42652...0acaf6185245382389f7f6019cee6537d8f5a8e6

    0acaf61 2021-02-26 Beat Küng - output mode: add GPS+RTCM output for PPK

acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware,acfloria/Firmware