HAL_SITL: link in StratoBlimp

libraries/AP_HAL_SITL/SITL_cmdline.cpp

@@ -38,6 +38,8 @@
 #include <SITL/SIM_JSON.h>
 #include <SITL/SIM_Blimp.h>
 #include <SITL/SIM_NoVehicle.h>
+#include <SITL/SIM_StratoBlimp.h>
+
 #include <AP_Filesystem/AP_Filesystem.h>
 
 #include <AP_Vehicle/AP_Vehicle_Type.h>
@@ -184,6 +186,9 @@ static const struct {
     { "JSON",               JSON::create },
     { "blimp",              Blimp::create },
     { "novehicle",          NoVehicle::create },
+#if AP_SIM_STRATOBLIMP_ENABLED
+    { "stratoblimp",        StratoBlimp::create },
+#endif
 };
 
 void SITL_State::_set_signal_handlers(void) const