GCS_MAVLink: stop passing dataflash into handle_radio_status

It can use the singleton instead

libraries/GCS_MAVLink/GCS.h

@@ -6,7 +6,6 @@
 #include <AP_HAL/AP_HAL.h>
 #include <AP_Common/AP_Common.h>
 #include "GCS_MAVLink.h"
-#include <AP_Logger/AP_Logger.h>
 #include <AP_Mission/AP_Mission.h>
 #include <AP_BattMonitor/AP_BattMonitor.h>
 #include <stdint.h>
@@ -360,7 +359,7 @@ protected:
     virtual void handle_mount_message(const mavlink_message_t *msg);
     void handle_fence_message(mavlink_message_t *msg);
     void handle_param_value(mavlink_message_t *msg);
-    void handle_radio_status(mavlink_message_t *msg, AP_Logger &dataflash, bool log_radio);
+    void handle_radio_status(mavlink_message_t *msg, bool log_radio);
     void handle_serial_control(const mavlink_message_t *msg);
     void handle_vision_position_delta(mavlink_message_t *msg);
 

libraries/GCS_MAVLink/GCS_Common.cpp

@@ -17,6 +17,7 @@
 #include <AP_AHRS/AP_AHRS.h>
 #include <AP_HAL/AP_HAL.h>
 #include <AP_InternalError/AP_InternalError.h>
+#include <AP_Logger/AP_Logger.h>
 #include <AP_OpticalFlow/AP_OpticalFlow.h>
 #include <AP_Vehicle/AP_Vehicle.h>
 #include <AP_RangeFinder/RangeFinder_Backend.h>
@@ -694,7 +695,7 @@ void GCS_MAVLINK::send_text(MAV_SEVERITY severity, const char *fmt, ...)
     va_end(arg_list);
 }
 
-void GCS_MAVLINK::handle_radio_status(mavlink_message_t *msg, AP_Logger &dataflash, bool log_radio)
+void GCS_MAVLINK::handle_radio_status(mavlink_message_t *msg, bool log_radio)
 {
     mavlink_radio_t packet;
     mavlink_msg_radio_decode(msg, &packet);
@@ -730,7 +731,7 @@ void GCS_MAVLINK::handle_radio_status(mavlink_message_t *msg, AP_Logger &datafla
 
     //log rssi, noise, etc if logging Performance monitoring data
     if (log_radio) {
-        dataflash.Write_Radio(packet);
+        AP::logger().Write_Radio(packet);
     }
 }