do not unnecessarily use qtcreatorlibrary.pri

these are not really qt creator libraries

Change-Id: Iadf9c0cde282776e26ab9210b480aa372f87301d
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/debugger/dumper.pro

 # This is a compile check for the dumpers only. Don't install the library!
 
-include(../../qtcreatorlibrary.pri)
+include(../../../qtcreator.pri)
 
 TEMPLATE = lib
 TARGET = DebuggingHelper

src/plugins/debugger/ptracepreload.pro

 
-include(../../qtcreatorlibrary.pri)
+include(../../../qtcreator.pri)
 
 TEMPLATE = lib
 TARGET = ptracepreload