Valgrind: Compile fix for Windows

Change-Id: Id60005f4760746299827fb502f1c0afec71542df
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>

src/plugins/android/androidconfigurations.cpp

@@ -67,6 +67,8 @@
 #include <QStringListModel>
 #include <QMessageBox>
 
+#include <functional>
+
 using namespace ProjectExplorer;
 using namespace Utils;