Fix all header defines

src/qt/bitcoingui.h

@@ -2,8 +2,8 @@
 // Distributed under the MIT/X11 software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#ifndef BITCOINGUI_H
-#define BITCOINGUI_H
+#ifndef BITCOIN_QT_BITCOINGUI_H
+#define BITCOIN_QT_BITCOINGUI_H
 
 #if defined(HAVE_CONFIG_H)
 #include "config/bitcoin-config.h"
@@ -236,4 +236,4 @@ private slots:
     void onMenuSelection(QAction* action);
 };
 
-#endif // BITCOINGUI_H
+#endif // BITCOIN_QT_BITCOINGUI_H