BTS_Tests: Access Control Classes are inverted

No normal phone would ever send us a RACH request due to all ACC
being barred in the SI of BTS_Tests

Change-Id: I149dca67971bde3072ec2081d9ad7e8f43434ebf
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index f3b7a28..324436d 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -132,7 +132,7 @@
 	tx_integer := '0000'B, /* 3 slots */
 	cell_barr_access := false,
 	re_not_allowed := true,
-	acc := '1111111111111111'B
+	acc := '0000010000000000'B
 };
 
 template (value) CellSelectionParameters ts_CellSelPar_default := {