Revert "ttcn3-bts-test: do not use respawn.sh"

This reverts commit 57f6804. We're observing a lot of turbulence in ttcn3-bts-test due to the clock instability: Shutting down BTS, exit 1, reason: PC clock skew too high Even though it's no longer necessary to respawn osmo-bts-trx, let's restore the respawn.sh to recover from such failures. Related: OS#6794 Change-Id: I1177e9068c49bf31a4010cd21700839dfa8d5050

Author: axilirator

ttcn3-bts-test/jenkins.sh

@@ -44,6 +44,7 @@ start_bsc() {
 start_bts() {
 local variant
 variant="$1"
+sleep_time_respawn="$2"
 echo Starting container with BTS
 if [ -z "$variant" ]; then
 echo ERROR: You have to specify a BTS variant
@@ -56,10 +57,11 @@ start_bts() {
 --ulimit core=-1 \
 -v $VOL_BASE_DIR/bts:/data \
 -v $VOL_BASE_DIR/unix:/data/unix \
+-e "SLEEP_BEFORE_RESPAWN=$sleep_time_respawn" \
 --name ${BUILD_TAG}-bts -d \
 $DOCKER_ARGS \
 $REPO_USER/osmo-bts-$IMAGE_SUFFIX \
-/bin/sh -c "osmo-bts-$variant -c /data/osmo-bts.gen.cfg >>/data/osmo-bts.log 2>&1"
+/bin/sh -c "/usr/local/bin/respawn.sh osmo-bts-$variant -c /data/osmo-bts.gen.cfg >>/data/osmo-bts.log 2>&1"
 }
 
 start_fake_trx() {