QtEnginio: set some configs enforcing

These are passing.  Make sure they stay that way.

Change-Id: Ib30cfc7100293eee7ef1a997e7b85be54a0fca87
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>