After the driver process initialization is done, use all the received
wl_output information to non-forcefully initialize the display devices.
We will reintroduce dynamic display device reinitialization (i.e., as a
response to non-initial wl_output events) when we start reading and
dispatching Wayland events.
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>