Qnx: update the runconfiguration display name

The "on BlackBerry Device" sequence makes little sense
and could be removed to be more consistent with the rest of
QTC run config widgets.

Task-number: QTCREATORBUG-9550

Change-Id: I024929a13352040f032cd51382ff57bb9bed59ff
Reviewed-by: Nicolas Arnaud-Cormos <nicolas@kdab.com>