Fixing QNearFieldTarget::waitForRequestCompleted

The current implementation is not waiting at all.

Adjust the waiting time for the tagtype1 unit test
to avoid 30min runtime.

Change-Id: Ied9cff72456b964af9224362f47113a7e2c792ae
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Aaron McCarthy <mccarthy.aaron@gmail.com>
Reviewed-by: Alex <alexander.blasche@digia.com>