BSSGP_Emulation: Add SNDCP decoding support

Change-Id: Icd2e8feed9173b0a2729b7ee1cfac37a86eca6cf
diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 6dd56ae..a381692 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -24,6 +24,11 @@
 import from GTPC_Types all;
 import from GTPU_Types all;
 
+import from LLC_Types all;
+import from LLC_Templates all;
+
+import from SNDCP_Types all;
+
 import from TELNETasp_PortType all;
 import from Osmocom_VTY_Functions all;