library/PCUIF_Types: f_PCUIF_ver_INFO_PDCHMask_get() returns BIT8

Change-Id: Ib8e497b596370d0b48e76e6e86c01f0c1d9c5df5
diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index b1a6dac..533f65d 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -5662,7 +5662,7 @@
 	var PCUIF_send_data sd;
 
 	[] PCU.receive(t_SD_PCUIF(pcu_conn_id, tr_PCUIF_INFO_IND(bts_nr, ?))) -> value sd {
-		var bitstring pdch_mask := f_PCUIF_ver_INFO_PDCHMask_get(sd.data.u.info_ind, trx_nr);
+		var BIT8 pdch_mask := f_PCUIF_ver_INFO_PDCHMask_get(sd.data.u.info_ind, trx_nr);
 		if (substr(pdch_mask, g_chan_nr.tn, 1) != exp) {
 			repeat;
 		}
diff --git a/library/PCUIF_Types.ttcn b/library/PCUIF_Types.ttcn
index 86c6c2a..0e112dc 100644
--- a/library/PCUIF_Types.ttcn
+++ b/library/PCUIF_Types.ttcn
@@ -982,7 +982,7 @@
 }
 
 function f_PCUIF_ver_INFO_PDCHMask_get(in PCUIF_info_ind info, uint8_t trx_nr)
-return bitstring {
+return BIT8 {
 	if (PCUIF_Types.mp_pcuif_version >= 10) {
 		return info.trx.v10[trx_nr].pdch_mask;
 	} else {