handover_test: add test 31: TCH/H: re-use dyn TS

Show undesired behavior of opening up another TCH/H timeslot even though
another TCH/H timeslot still has room for a second lchan. This is particularly
bad for dynamic timeslots, reducing PDCH as well as TCH/F resources.

Change-Id: If222835af92d832b848824e5466bdcaf9af8a614
diff --git a/tests/testsuite.at b/tests/testsuite.at
index 787f33d..bd6f56f 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -236,3 +236,9 @@
 cat $abs_srcdir/handover/handover_test.ok > expout
 AT_CHECK([$abs_top_builddir/tests/handover/handover_test 30], [], [expout], [ignore])
 AT_CLEANUP
+
+AT_SETUP([handover test 31])
+AT_KEYWORDS([handover])
+cat $abs_srcdir/handover/handover_test.ok > expout
+AT_CHECK([$abs_top_builddir/tests/handover/handover_test 31], [], [expout], [ignore])
+AT_CLEANUP