build_options cannot autodetect InertialLabs since the feature is extracted as AP_EXTERNAL_AHRS_INERTIALLABS_ENABLED (without the underscore).
This allows you to define in/out InertialLabs properly.
* This catches when there's a mismatch of GPSx_TYPE and EAHRS_SENSORS
when GPS is enabled
* Before this pre-arm, failure to set GPS_TYPE2 to 21 (ExternalAHRS)
resulted in silent rejection of the data in AP_GPS because the default
is off
* And fix a little logging bug
Signed-off-by: Ryan Friedman <ryanfriedman5410+github@gmail.com>
Valentin Bugrov
James O'Shannessy
Ryan Friedman
Andrew Tridgell