Tools: extract_features.py: changte symbol used to probe for AIS

because we use dummy methods in the AIS library it can appear to be compiled in when it is actually not functional

Author: peterbarker

Tools/scripts/extract_features.py

@@ -57,7 +57,7 @@ def __init__(self, filename, nm="arm-none-eabi-nm", strings="strings"):
             ('AP_COMPASS_ICM20948_ENABLED', r'AP_Compass_AK09916::probe_ICM20948',),
             ('AP_COMPASS_DRONECAN_HIRES_ENABLED', r'AP_Compass_DroneCAN::handle_magnetic_field_hires',),
 
-            ('AP_AIS_ENABLED', 'AP_AIS::AP_AIS',),
+            ('AP_AIS_ENABLED', 'AP_AIS::decode_position_report',),
 
             ('HAL_EFI_ENABLED', 'AP_EFI::AP_EFI',),
             ('AP_EFI_{type}_ENABLED', 'AP_EFI_(?P<type>.*)::update',),