Testconfig: Enable iOS testing in QtBase's OSX10.9 stage

There is more recent XCode in 10.9, with more recent iPhone
simulator. The older one seems to have some issues with the
ios-sim we are using.

Change-Id: Ibec1a13b27cf585887ddd0d5abd58b7e047581de
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
All projects store test logs to qt.artifacts.dir

Change-Id: I3cc1c71f1274cb63618efa10353cc5bb0985887c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Simo Fält <simo.falt@digia.com>