QtGraphicalEffects: set some configs enforcing

These are passing.  Make sure they stay that way.

Change-Id: I1e535bf6c9db4a4f2e1284ebd326ed117788e293
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>