MSC: use config file for mncc path

Use config file parameter instead of command line option for MNCC socket
path.

Change-Id: I689cfb3bad09b76859ef7e42c1312c636eebe637

ttcn3-msc-test/jenkins.sh

@@ -38,7 +38,7 @@ docker run	--rm \
 		-v $VOL_BASE_DIR/unix:/data/unix \
 		--name ${BUILD_TAG}-msc -d \
 		$REPO_USER/osmo-msc-$IMAGE_SUFFIX \
-		/usr/local/bin/osmo-msc -M /data/unix/mncc
+		/usr/local/bin/osmo-msc
 
 echo Starting container with MSC testsuite
 docker run	--rm \

ttcn3-msc-test/osmo-msc.cfg

@@ -73,6 +73,7 @@ msc
  cs7-instance-iu 0
  mgw remote-ip 172.18.1.103
  emergency-call route-to-msisdn 112
+ mncc external /data/unix/mncc
 mncc-int
  default-codec tch-f fr
  default-codec tch-h hr