BSC_Test_ASCI: Add Talker detect with UPLINK REJECT COMMAND test

The talker requests uplink. The UPLINK REQUEST is rejected by the MSC.
The uplink is marked free again.

Change-Id: Iba4dd21a69d49e6a8508b15b823ffccc7f0dafc9
diff --git a/bsc/MSC_ConnectionHandler.ttcn b/bsc/MSC_ConnectionHandler.ttcn
index b7760d0..269fb79 100644
--- a/bsc/MSC_ConnectionHandler.ttcn
+++ b/bsc/MSC_ConnectionHandler.ttcn
@@ -760,6 +760,7 @@
 	boolean vgcs_talker_fail,
 	boolean vgcs_talker_est,
 	boolean vgcs_talker_rel,
+	boolean vgcs_uplink_reject,
 	boolean vgcs_uplink_seized,
 	boolean vgcs_uplink_release,
 	boolean delay_bts,
@@ -858,6 +859,7 @@
 		vgcs_talker_fail := false,
 		vgcs_talker_est := false,
 		vgcs_talker_rel := false,
+		vgcs_uplink_reject := false,
 		vgcs_uplink_seized := false,
 		vgcs_uplink_release := false,
 		delay_bts := false,