Copter: periodically call stats update

ArduCopter/ArduCopter.cpp

@@ -151,6 +151,7 @@ const AP_Scheduler::Task Copter::scheduler_tasks[] = {
     SCHED_TASK(userhook_SuperSlowLoop, 1,   75),
 #endif
     SCHED_TASK(button_update,          5,    100),
+    SCHED_TASK(stats_update,           1,    100),
 };
 
 
@@ -207,6 +208,14 @@ void Copter::perf_update(void)
     pmTest1 = 0;
 }
 
+/*
+  update AP_Stats
+ */
+void Copter::stats_update(void)
+{
+    g2.stats.update();
+}
+
 void Copter::loop()
 {
     // wait for an INS sample

ArduCopter/Copter.h

@@ -718,6 +718,7 @@ private:
     void button_update();
     void init_proximity();
     void update_proximity();
+    void stats_update();
     void send_pid_tuning(mavlink_channel_t chan);
     void gcs_send_message(enum ap_message id);
     void gcs_send_mission_item_reached_message(uint16_t mission_index);