DolphinQt2: Add missing include guards

Source/Core/DolphinQt2/Config/Mapping/GCKeyboardEmu.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;

Source/Core/DolphinQt2/Config/Mapping/GCPadEmu.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;

Source/Core/DolphinQt2/Config/Mapping/GCPadWiiU.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuExtension.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QGroupBox;

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuGeneral.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QComboBox;

Source/Core/DolphinQt2/Config/Mapping/WiimoteEmuMotionControl.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include "DolphinQt2/Config/Mapping/MappingWidget.h"
 
 class QCheckBox;

Source/Core/DolphinQt2/GameList/TableProxyModel.h

@@ -2,6 +2,8 @@
 // Licensed under GPLv2+
 // Refer to the license.txt file included.
 
+#pragma once
+
 #include <QSortFilterProxyModel>
 
 // This subclass of QSortFilterProxyModel allows the data to be filtered by the view.