APM_Control: fill in Act field of PID logs for plane

libraries/APM_Control/AP_PitchController.cpp

@@ -187,6 +187,7 @@ int32_t AP_PitchController::_get_rate_out(float desired_rate, float scaler, bool
     _pid_info.D = rate_error * gains.D * scaler;
 	_last_out = _pid_info.D + _pid_info.FF + _pid_info.P;
     _pid_info.desired = desired_rate;
+    _pid_info.actual = achieved_rate;
 
     if (autotune.running && aspeed > aparm.airspeed_min) {
         // let autotune have a go at the values 

libraries/APM_Control/AP_RollController.cpp

@@ -161,6 +161,7 @@ int32_t AP_RollController::_get_rate_out(float desired_rate, float scaler, bool
     _pid_info.P = desired_rate * kp_ff * scaler;
     _pid_info.FF = desired_rate * k_ff * scaler;
     _pid_info.desired = desired_rate;
+    _pid_info.actual = achieved_rate;
 
 	_last_out = _pid_info.FF + _pid_info.P + _pid_info.D;
 

libraries/APM_Control/AP_SteerController.cpp

@@ -147,6 +147,8 @@ int32_t AP_SteerController::get_steering_out_rate(float desired_rate)
     if (_reverse) {
         yaw_rate_earth *= -1.0f;
     }
+    _pid_info.actual = yaw_rate_earth;
+
     float rate_error = (desired_rate - yaw_rate_earth) * scaler;
 	
 	// Calculate equivalent gains so that values for K_P and K_I can be taken across from the old PID law