xwayland: Move command line fd initialization to InitOutput

Again, as this is DDX state not screen state, run it from DDX setup not
screen setup.

Signed-off-by: Adam Jackson <ajax@redhat.com>
1 job for xwayland-cleanups in 1 minute and 8 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #43515
job

00:01:08