the previous invocation wasn't working because QSpiAccessibleBridge
first needs to construct the connection before it can connect to the
enabledChanged signal that gets emitted as part of connectA11yBus,
effectively missing the signal emission because the connection wasn't
established by the time the emit happens. delay the signal emission
through the eventloop so the caller has time to connect to all signals.
https://bugs.kde.org/show_bug.cgi?id=452132
Change-Id: I1cf9fdd824b2c118cc6278b207aaaedeff259bb1
Reviewed-by: Aleix Pol Gonzalez <aleixpol@kde.org>