Fix Probe method for multiple devices

If the old Probe method was used (a device was specifeed in the config using kmsdev), that previousely only worked for one
device, and only if no other devices used modesetting.

Signed-off-by: Daniel Abrecht <public@danielabrecht.ch>
4 jobs for fix-modesettimg-multiple-kmsdev-probe in 4 minutes and 31 seconds (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Docker Image
passed #5488064
debian-testing

00:00:24

 
  Build And Test
passed #5488065
autotools

00:04:06

passed #5488066
meson

00:02:02

passed #5488067
meson-noglamor

00:01:52