AP_Frsky_Telem: take is_flying from AP_Notify

libraries/AP_Frsky_Telem/AP_Frsky_Telem.cpp

@@ -703,7 +703,7 @@ uint32_t AP_Frsky_Telem::calc_ap_status(void)
     // simple/super simple modes flags
     ap_status |= (uint8_t)((*_ap.valuep) & AP_SSIMPLE_FLAGS)<<AP_SSIMPLE_OFFSET;
     // is_flying flag
-    ap_status |= (uint8_t)(((*_ap.valuep) & AP_LANDCOMPLETE_FLAG) ^ AP_LANDCOMPLETE_FLAG);
+    ap_status |= (uint8_t)(AP_Notify::flags.flying) << AP_FLYING_OFFSET;
     // armed flag
     ap_status |= (uint8_t)(AP_Notify::flags.armed)<<AP_ARMED_OFFSET;
     // battery failsafe flag

libraries/AP_Frsky_Telem/AP_Frsky_Telem.h

@@ -87,8 +87,8 @@ for FrSky SPort Passthrough
 #define AP_CONTROL_MODE_LIMIT       0x1F
 #define AP_SSIMPLE_FLAGS            0x6
 #define AP_SSIMPLE_OFFSET           4
-#define AP_LANDCOMPLETE_FLAG        0x80
 #define AP_INITIALIZED_FLAG         0x2000
+#define AP_FLYING_OFFSET            6
 #define AP_ARMED_OFFSET             8
 #define AP_BATT_FS_OFFSET           9
 #define AP_EKF_FS_OFFSET            10
@@ -125,11 +125,6 @@ public:
     // add statustext message to FrSky lib message queue
     void queue_message(MAV_SEVERITY severity, const char *text);
 
-    // update whether we're flying (used for Plane)
-    // set land_complete flag to 0 if is_flying
-    // set land_complete flag to 1 if not flying
-    void set_is_flying(bool is_flying) { (is_flying) ? (_ap.value &= ~AP_LANDCOMPLETE_FLAG) : (_ap.value |= AP_LANDCOMPLETE_FLAG); }
-
     // update error mask of sensors and subsystems. The mask uses the
     // MAV_SYS_STATUS_* values from mavlink. If a bit is set then it
     // indicates that the sensor or subsystem is present but not