Water Linked DVL A50 Support

[EliotBR (Eliot)]

Hi @octopus,

@EliotBR

ArduSub beta [(4.1.0)] recently had a couple of updates that apparently messed up a default parameter for the depth sensor. The issue should be fixed if you

@williangalvani

try settting BARO_PROBE_EXT to 768 and then reboot.

You will also need to set EK3_SRC1_POSXY and EK3_SRC1_VELXY to 6