Correctly set the FW_ARSP_MODE parameter value

[xdwgood]

/**
 * Airspeed mode
 *
 * For small wings or VTOL without airspeed sensor this parameter can be used to
 * enable flying without an airspeed reading
 *
 * @value 0 Normal (use airspeed if available)
 * @value 1 Airspeed disabled
 * @group FW Attitude Control
 */
PARAM_DEFINE_INT32(FW_ARSP_MODE, 0);

not have value 2

By the way, I think the functions of these two parameters are similar　CBRK_AIRSPD_CHK FW_ARSP_MODE

Can we just keep CBRK_AIRSPD_CHK? Use CBRK_AIRSPD_CHK instead of FW_ARSP_MODE

FYI @sfuhrer

[dagar]

At one point it had multiple values.

Currently CBRK_AIRSPD_CHK is a state machine level check that allows preflight to not require airspeed. It's also an optimization in rc.sensors that will skip trying to probe and start the differential pressure sensor drivers.

FW_ARSP_MODE is a controller level configuration parameter (fw_att_control, fw_pos_control_l1) that allows them to optionally operate without airspeed.

If anything I think I'd want to get rid of the circuit breaker parameter. Then things like the controllers could tie into the state machine with requirements and health. If something in the system requires airspeed then it can be locked into the preflight check system. If nothing in the system requires airspeed, then commander doesn't need to care.