Return board voltage as 5V so we don't fail prearm checks.
@ -53,6 +53,5 @@ public:
AP_HAL::AnalogSource* channel(int16_t n);
// we don't yet know how to get the board voltage
float board_voltage(void) { return 0.0f; }
float board_voltage(void) { return 5.0f; }
};