Add the configuration tests.

Add the list of tests to sync.profile, and make sure each test only happens
on the platforms it's intended for.

Change-Id: Id022a6b85b349f4a8a649d3449b622e4ada7f4f4
Reviewed-on: http://codereview.qt.nokia.com/1910
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

config.tests/directshow/directshow.pro

@@ -2,6 +2,8 @@ CONFIG -= qt
 CONFIG += console
 TEMPLATE = app
 
+requires(win32*)
+
 # Input
 SOURCES += main.cpp