Jenkins build is back to normal : master-osmo-bts » lc15, origin/nrw/litecell15,0,default,osmocom-master-debian9 #2420

See <https://jenkins.osmocom.org/jenkins/job/master-osmo-bts/BTS_MODEL=lc15,FIRMWARE_VERSION=origin%2Fnrw%2Flitecell15,WITH_MANUALS=0,a4=default,label=osmocom-master-debian9/2420/display/redirect>