Copter: accept guided pos updates when doing NAV_GUIDED cmd

ArduCopter/commands_logic.pde

@@ -857,7 +857,7 @@ static bool verify_yaw()
 static bool do_guided(const AP_Mission::Mission_Command& cmd)
 {
     // only process guided waypoint if we are in guided mode
-    if (control_mode != GUIDED) {
+    if (control_mode != GUIDED && !(control_mode == AUTO && auto_mode == Auto_NavGuided)) {
         return false;
     }