Utils: State Qt dependencies in the *.pri file

...to avoid compilation errors for projects that include the *.pri file.

This fixed the compilation of tests/unit/unittest/unittest.pro.

Change-Id: Ia50322d3a7b7a9d05b7f17239e772f013ffe2ff5
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/libs/utils/utils-lib.pri

@@ -4,7 +4,7 @@ dll {
     DEFINES += QTCREATOR_UTILS_STATIC_LIB
 }
 
-QT += network
+QT += gui network qml
 
 CONFIG += exceptions # used by portlist.cpp, textfileformat.cpp, and ssh/*
 

src/libs/utils/utils.pro

-QT += gui network qml
-
 include(../../qtcreatorlibrary.pri)
 include(utils-lib.pri)