slapos-master/software.cfg: add wendelin bt5 to list

See merge request !1117
6 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
failed Cloudooo.UnitTest-Master

00:09:07

passed SlapOS.Eggs.UnitTest-Master.Python2

passed SlapOS.Eggs.UnitTest-Master.Python3

00:22:02

passed SlapOS.SlapRunner.ResilienceTest-Master

00:23:35

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

01:29:27

passed SlapOS.Eggs.UnitTest-Master.Python2

00:10:23