AP_Vehicle: Add missing const in member functions

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

libraries/AP_Vehicle/AP_Vehicle.cpp

@@ -57,7 +57,7 @@ const AP_Param::GroupInfo AP_Vehicle::var_info[] = {
     // @Path: ../AP_ExternalAHRS/AP_ExternalAHRS.cpp
     AP_SUBGROUPINFO(externalAHRS, "EAHRS", 8, AP_Vehicle, AP_ExternalAHRS),
 #endif
-    
+
     AP_GROUPEND
 };
 
@@ -125,7 +125,7 @@ void AP_Vehicle::setup()
     // call externalAHRS init before init_ardupilot to allow for external sensors
     externalAHRS.init();
 #endif
-    
+
     // init_ardupilot is where the vehicle does most of its initialisation.
     init_ardupilot();
     gcs().send_text(MAV_SEVERITY_INFO, "ArduPilot Ready");

libraries/AP_Vehicle/AP_Vehicle.h

@@ -89,7 +89,7 @@ public:
      */
     struct FixedWing {
         AP_Int8 throttle_min;
-        AP_Int8 throttle_max;	
+        AP_Int8 throttle_max;
         AP_Int8 throttle_slewrate;
         AP_Int8 throttle_cruise;
         AP_Int8 takeoff_throttle_max;
@@ -100,7 +100,7 @@ public:
         AP_Int8  crash_detection_enable;
         AP_Int16 roll_limit_cd;
         AP_Int16 pitch_limit_max_cd;
-        AP_Int16 pitch_limit_min_cd;        
+        AP_Int16 pitch_limit_min_cd;
         AP_Int8  autotune_level;
         AP_Int8  stall_prevention;
         AP_Int16 loiter_radius;
@@ -318,7 +318,7 @@ protected:
 #if HAL_EXTERNAL_AHRS_ENABLED
     AP_ExternalAHRS externalAHRS;
 #endif
-    
+
     static const struct AP_Param::GroupInfo var_info[];
     static const struct AP_Scheduler::Task scheduler_tasks[];