libosmocore: use dispatcher script

Get rid of job name comparison because it depends and exact build server
name and hence is highly fragile. Use dispatcher script the same way we
do in osmo-bts.

N. B: this requires I2955e866bce4f000a53369bd601a346c36c82468 in
libosmocore.

Change-Id: I76dfc11a05007ae5c6e0554fe8132695b67cccaa

jobs/gerrit-verifications.yml

@@ -46,13 +46,7 @@
           a1_name: arch
           a1: !!python/tuple [arm-none-eabi, amd64]
           combination_filter: '!(arch=="arm-none-eabi" && label=="FreeBSD_amd64")'
-          cmd: >
-           # keep first line with less indent to preserve newlines
-            if [[ "$JOB_NAME" == *"arch=arm-none-eabi,label=linux_amd64_debian8"* ]]; then
-              ./contrib/jenkins-arm.sh
-            else
-              ./contrib/jenkins.sh
-            fi
+          cmd: './contrib/jenkins_arch.sh "$arch"'
 
       - libsmpp34
       - libusrp

jobs/master-builds.yml

@@ -56,13 +56,7 @@
           a1_name: arch
           a1: !!python/tuple [arm-none-eabi, amd64]
           combination_filter: '!(arch=="arm-none-eabi" && label=="FreeBSD_amd64")'
-          cmd: >
-           # keep first line with less indent to preserve newlines
-            if [[ "$JOB_NAME" == *"arch=arm-none-eabi,label=linux_amd64_debian8"* ]]; then
-              ./contrib/jenkins-arm.sh
-            else
-              ./contrib/jenkins.sh
-            fi
+          cmd: './contrib/jenkins_arch.sh "$arch"'
           trigger: >
             master-libosmo-abis, master-libosmo-sccp, master-openbsc, master-osmo-pcap, master-osmo-tetra,
             master-osmo-pcu, master-osmo-gmr, master-osmo-bts, master-osmocom-bb, SIMtrace, xgoldmon,