start-testsuite.sh: Add archlinux tccn3 path to LD_LIBRARY_PATH

Archlinux installs ttcn33 libaries in /usr/ttcn3/lib (titan-git package from AUR).

Change-Id: I99219f4ab36c82e562ef3fed047d3c52d64497f1
diff --git a/start-testsuite.sh b/start-testsuite.sh
index 87cf08b..a291a4f 100755
--- a/start-testsuite.sh
+++ b/start-testsuite.sh
@@ -15,4 +15,4 @@
 	CFG=$2
 fi
 
-LD_LIBRARY_PATH=`dirname $SUITE`:/usr/lib/titan ttcn3_start $SUITE $CFG
+LD_LIBRARY_PATH=`dirname $SUITE`:/usr/lib/titan:/usr/ttcn3/lib ttcn3_start $SUITE $CFG