Fix Add Library for static libraries

Broke in 7481bff2 which split up
LibraryTemplate in SharedLibraryTemplate and StaticLibrary.

Change-Id: I797c007fff09ffd09b7744cf3543217b936dea12
Task-number: QTCREATORBUG-14382
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: BogDan Vatra <bogdan@kde.org>

src/plugins/qmakeprojectmanager/librarydetailscontroller.cpp

@@ -1048,7 +1048,8 @@ void InternalLibraryDetailsController::updateProFile()
     QList<QmakeProFileNode *> proFiles = findQt4ProFiles(rootProject);
     foreach (QmakeProFileNode *proFileNode, proFiles) {
         const QString proFilePath = proFileNode->path().toString();
-        if (proFileNode->projectType() == SharedLibraryTemplate) {
+        QmakeProjectManager::QmakeProjectType type = proFileNode->projectType();
+        if (type == SharedLibraryTemplate || type == StaticLibraryTemplate) {
             const QStringList configVar = proFileNode->variableValue(ConfigVar);
             if (!configVar.contains(QLatin1String("plugin"))) {
                 const QString relProFilePath = rootDir.relativeFilePath(proFilePath);