Add * as a valid token to our blacklisting

This helps to blacklist a test function on all platforms,
something that isn't easily possible currently. Adding

[testfunction]
*

to the BLACKLIST file will now blacklist the function
on all platforms.

Change-Id: I9e1a1daf94caa05408a6b3cd7ea7a3acdc962a43
Reviewed-by: Simo Fält <simo.falt@digia.com>
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

src/testlib/qtestblacklist.cpp

@@ -70,6 +70,7 @@ QT_BEGIN_NAMESPACE
 // this table can be extended with new keywords as required
 const char *matchedConditions[] =
 {
+    "*",
 #ifdef Q_OS_LINUX
     "linux",
 #endif