Expect ms object to exist before calling tbf_alloc_dl_tbf()

Same as previous commit, this time for the DL counterpart.

Change-Id: I87f6cdf8288a688466020bda0874e68b57aa71c4
diff --git a/tests/app_info/AppInfoTest.cpp b/tests/app_info/AppInfoTest.cpp
index ca2c59e..cd4454d 100644
--- a/tests/app_info/AppInfoTest.cpp
+++ b/tests/app_info/AppInfoTest.cpp
@@ -93,9 +93,9 @@
 	trx->pdch[7].enable();
 
 	ms1 = bts->ms_alloc(10, 11);
-	tbf1 = tbf_alloc_dl_tbf(bts_data, ms1, 0, 10, 11, false);
+	tbf1 = tbf_alloc_dl_tbf(bts_data, ms1, 0, false);
 	ms2 = bts->ms_alloc(12, 13);
-	tbf2 = tbf_alloc_dl_tbf(bts_data, ms2, 0, 12, 13, false);
+	tbf2 = tbf_alloc_dl_tbf(bts_data, ms2, 0, false);
 
 	fprintf(stderr, "\n");
 }