PCUIF_Types: get rid of _DT, _dt (Direct TLLI)

Since we now no longer refer to TLLI when we mean "message ID" (msg_id),
we should also remove the "_DT" / "_dt" suffix from structs and define
constants and replace it with "_2" if required.

Depends: osmo-pcu.git If641b507dcb6b176109c99dce7cff2a7561364b0
Related: OS#5927
Change-Id: I15e754ce3ceed92a517586a073d3e3ed008b5eef
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index ad6ae5a..63a9a05 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -5819,11 +5819,11 @@
 		/* three characters prefix: last 3 digits of IMSI as ASCII */
 		f_pcu_data_req(0, 0, 0, 0, 0, PCU_IF_SAPI_PCH, '313233'O & c_PCU_DATA);
 	} else {
-		var PCUIF_pch_dt pch_dt;
-		pch_dt.msg_id := '01020304'O;
-		pch_dt.imsi := "00101000000000123";
-		pch_dt.data := c_PCU_DATA;
-		f_pcu_data_req(0, 0, 0, 0, 0, PCU_IF_SAPI_PCH_DT, enc_PCUIF_pch_dt(pch_dt));
+		var PCUIF_pch pch;
+		pch.msg_id := '01020304'O;
+		pch.imsi := "00101000000000123";
+		pch.data := c_PCU_DATA;
+		f_pcu_data_req(0, 0, 0, 0, 0, PCU_IF_SAPI_PCH_2, enc_PCUIF_pch(pch));
 	}
 
 	T.start;