BTS_Tests: cosmetic: rename 'as_l1_dcch' to 'as_l1_dcch_loop'

Change-Id: I06083e2352408f5832603fa88232d2008bce218d
Related: OS#4799
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 89d1d2c..7b44363 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -686,7 +686,7 @@
 		}
 	[not ignore_other] as_l1_sacch();
 	[not ignore_other] as_meas_res();
-	[not ignore_other] as_l1_dcch();
+	[not ignore_other] as_l1_dcch_loop();
 	[not ignore_other] RSL.receive {
 		Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Unexpected RSL message received");
 		}
@@ -1771,7 +1771,7 @@
 		}
 }
 
-private altstep as_l1_dcch() runs on ConnHdlr {
+private altstep as_l1_dcch_loop() runs on ConnHdlr {
 	var L1ctlDlMessage l1_dl;
 	[] L1CTL.receive(tr_L1CTL_DATA_IND(g_chan_nr, tr_RslLinkID_DCCH(?))) -> value l1_dl {
 		log("DCCH received: ", l1_dl.payload.data_ind.payload);
@@ -2140,7 +2140,7 @@
 	alt {
 	[] as_l1_sacch();
 	[] as_meas_res();
-	[] as_l1_dcch();
+	[] as_l1_dcch_loop();
 	[] L1CTL.receive { repeat; }
 	[g_Tmeas_exp.running] T.timeout {
 		/* as_meas_res() would have done Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail) in case