Fix android build

src/Joystick/Joystick.cc

@@ -75,6 +75,7 @@ Joystick::Joystick(const QString& name, int axisCount, int buttonCount, int sdlI
     Q_UNUSED(axisCount)
     Q_UNUSED(buttonCount)
     Q_UNUSED(sdlIndex)
+    Q_UNUSED(multiVehicleManager)
 #else
     _rgAxisValues = new int[_axisCount];
     _rgCalibration = new Calibration_t[_axisCount];

src/comm/SerialLink.cc

@@ -25,6 +25,7 @@
 #include "QGC.h"
 #include "MG.h"
 #include "QGCLoggingCategory.h"
+#include "QGCApplication.h"
 
 QGC_LOGGING_CATEGORY(SerialLinkLog, "SerialLinkLog")