BTS_Tests.ttcn: fix: move TC_pcu_ptcch to a proper place

We have a module parameter 'mp_l1_supports_gprs' that indicates
whether the L1 back-end (trxcon, virt_phy, or Calypso) does
support PDCH and TBF management.

The TC_pcu_ptcch does not require support of TBF management, only
PDCH (namely PTCCH) needs to be supported. This is already
implemented in trxcon, and can be easily implemented for Calypso.

Change-Id: Id2e751e825a7a5128bc3f2e4677d8ef31174b501
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 90281e3..25721e3 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -6356,7 +6356,6 @@
 		execute( TC_pcu_deact_req_wrong_ts() );
 		execute( TC_pcu_ver_si13() );
 		if (mp_l1_supports_gprs) {
-			execute( TC_pcu_ptcch() );
 			execute( TC_pcu_data_req_pdtch() );
 			execute( TC_pcu_data_req_ptcch() );
 			execute( TC_pcu_data_req_wrong_bts() );
@@ -6364,6 +6363,7 @@
 			execute( TC_pcu_data_req_wrong_ts() );
 			execute( TC_pcu_data_req_ts_inactive() );
 		}
+		execute( TC_pcu_ptcch() );
 		execute( TC_pcu_data_req_agch() );
 		execute( TC_pcu_data_req_pch() );
 		execute( TC_pcu_data_req_imm_ass_pch() );