Plane: added ATRP log header to plane log headers

too many people can't understand how to download .bin logs

ArduPlane/ArduPlane.pde

@@ -54,6 +54,7 @@
 
 #include <APM_OBC.h>
 #include <APM_Control.h>
+#include <AP_AutoTune.h>
 #include <GCS.h>
 #include <GCS_MAVLink.h>    // MAVLink GCS definitions
 #include <AP_Mount.h>           // Camera/Antenna mount

ArduPlane/Log.pde

@@ -565,6 +565,8 @@ static const struct LogStructure log_structure[] PROGMEM = {
       "ARM", "IHB", "TimeMS,ArmState,ArmChecks" },
     { LOG_AIRSPEED_MSG, sizeof(log_AIRSPEED),
       "ARSP",  "Iffc",     "TimeMS,Airspeed,DiffPress,Temp" },
+    { LOG_ATRP_MSG, sizeof(AP_AutoTune::log_ATRP),
+      "ATRP", "IBBcfff",  "TimeMS,Type,State,Servo,Demanded,Achieved,P" },
     TECS_LOG_FORMAT(LOG_TECS_MSG)
 };