ttcn3: run_docker: remove :ro

Don't mount usr_local, var_local as read-only, so the environment is
more similar to our jenkins.

Fix for:
  + /data/upfd-setup.sh
  + command -v open5gs-upfd
  + upfd_bin=/usr/local/bin/open5gs-upfd
  + setcap cap_net_raw+ep /usr/local/bin/open5gs-upfd
  Failed to set capabilities on file '/usr/local/bin/open5gs-upfd': Read-only file system

Change-Id: I52d2989d91119f0f1673f49723f1055fe7428d15
---
M ttcn3/ttcn3.sh
1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/ttcn3/ttcn3.sh b/ttcn3/ttcn3.sh
index 38a5c37..a07295a 100755
--- a/ttcn3/ttcn3.sh
+++ b/ttcn3/ttcn3.sh
@@ -450,8 +450,8 @@
 	cd "$(get_testsuite_dir_docker)"
 	DOCKER_ARGS="\
 		-e LD_LIBRARY_PATH=/usr/local/lib \
-		-v "$DIR_USR_LOCAL":/usr/local:ro \
-		-v "$DIR_VAR_LOCAL":/var/local:ro \
+		-v "$DIR_USR_LOCAL":/usr/local \
+		-v "$DIR_VAR_LOCAL":/var/local \
 		-v $hacks:/osmo-ttcn3-hacks:ro \
 		"
 	if [ -n "$ARG_TEST_NAME" ]; then

