Fix all header defines

src/qt/walletmodel.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 WALLETMODEL_H
-#define WALLETMODEL_H
+#ifndef BITCOIN_QT_WALLETMODEL_H
+#define BITCOIN_QT_WALLETMODEL_H
 
 #include "paymentrequestplus.h"
 #include "walletmodeltransaction.h"
@@ -261,4 +261,4 @@ public slots:
     void pollBalanceChanged();
 };
 
-#endif // WALLETMODEL_H
+#endif // BITCOIN_QT_WALLETMODEL_H